Use the A-Z list to browse more than 6,000 health-related topics in our library. Clicking on a term opens the definition and, in most cases, links to more information.
"PAB" is more commonly referred to as "Premature Atrial Contractions" in the medical community. Premature Atrial Contractions
Also Known As: "Atrial Extrasystoles, PAC, Premature Supraventricular Contractions, Premature Atrial Beats, Atrial Ectopics"
A harmless irregular heart rhythm that does not need to be treated. It is often due to stress or excessive use of substances such as caffeine. It occurs when one of the heart's upper chambers contracts prematurely in the heartbeat cycle. More Information on Premature Atrial Contractions: Arrhythmia
"PAC" is more commonly referred to as "Premature Atrial Contractions" in the medical community. Premature Atrial Contractions
Also Known As: "Atrial Extrasystoles, Premature Supraventricular Contractions, Premature Atrial Beats, Atrial Ectopics, PAB"
A harmless irregular heart rhythm that does not need to be treated. It is often due to stress or excessive use of substances such as caffeine. It occurs when one of the heart's upper chambers contracts prematurely in the heartbeat cycle. More Information on Premature Atrial Contractions: Arrhythmia
Also Known As: "Cardiac Pacing, Permanent Pacemaker, Electronic Pacemaker, Temporary Pacemaker, Internal Pacemaker, Artificial Pacemaker, External Pacemaker, Epicardial Implantation"
Implanted in the chest, an artificial pacemaker is a battery-powered device that monitors and, if necessary, corrects an abnormal heart rhythm by sending electrical charges to the heart. More Information on Pacemaker: Arrhythmia
Regular appointments to monitor patients with pacemakers. They may include medical tests, as well as a check of the pacemaker's programming and battery. Checks can sometimes be done over the telephone with transtelephonic monitoring. More Information on Pacemaker Check: Arrhythmia
"Pacemaker Generator" is more commonly referred to as "Generator" in the medical community. Generator
Also Known As: "ICD Generator, Pulse Generator"
The part of a pacemaker or ICD that creates electrical impulses and sends them through wires (leads) to the electrodes on the heart. The resulting electrical shock to the heart can cause the heart to beat, or can correct an abnormal heart rhythm. More Information on Generator: Arrhythmia
A minor surgery used to implant a permanent pacemaker into the chest of a patient. A small incision is made in the chest. Wires (or 'leads') are passed through a vein into the heart, and the generator is inserted into the tissue under the collarbone. More Information on Pacemaker Insertion: Arrhythmia
When a pacemaker is no longer synchronized with the heart's own rhythm and attempts to pump blood through a closed valve. This causes dizziness and fatigue. Pacemaker syndrome develops in about 25 percent of single-chamber pacemaker patients. More Information on Pacemaker Syndrome: Arrhythmia
"Pacerone" is more commonly referred to as "Cordarone" in the medical community. Cordarone
A brand of antiarrhythmics, medications used to treat all types of irregular heart rhythms (arrhythmias) except an abnormally slow heartbeat. Some act directly on the heart to slow it down, and others act to restore a normal beating pattern. More Information on Cordarone: Heart Drug & Medication
Devices designed for infants to suck on. They have a calming effect on many infants, but excessive or too-early use may cause problems, such as difficulty breastfeeding. More Information on Pacifiers: Newborn Care
A medication belonging to the drug class mitotic inhibitors that slow cancer growth by interfering with cell division (mitosis). It is used primarily in the treatment of breast and ovarian cancers and for Kaposi's sarcoma. More Information on Paclitaxel: Cancer Drug & Medication
Also Known As: "Program for Assertive Community Treatment"
A team effort to keep patients with schizophrenia out of the hospital and living on their own. Professionals are available 24 hours a day to meet clients' needs where they live. More Information on PACT: Schizophrenia & Psychosis
"PAD" is more commonly referred to as "Peripheral Arterial Disease" in the medical community. Peripheral Arterial Disease
Also Known As: "Peripheral Arterial Occlusive Disease, PAOD, Peripheral Artery Disease, Obliterans"
Hardening or narrowing of the blood vessels in the arms, legs, abdomen, kidneys or carotid arteries (supplying blood to the brain). Like coronary artery disease (which affects the arteries of the heart), PAD can lead to a restriction of blood flow. More Information on Peripheral Arterial Disease: Vascular Disease
"PAD of the Lower Extremities" is more commonly referred to as "Lower Extremity PAD" in the medical community. Lower Extremity PAD
Also Known As: "Lower Extremity Peripheral Arterial Disease"
Peripheral arterial disease (PAD) that occurs in the blood vessels of the legs. It is a major cause of diminished ability to walk and advanced cases can lead to leg amputation. The primary symptom is a type of leg pain (claudication). More Information on Lower Extremity PAD: Vascular Disease
"PAD of the Mesenteric Arteries" is more commonly referred to as "Mesenteric Arterial Disease" in the medical community. Mesenteric Arterial Disease
Also Known As: "Intestinal Arterial Disease, Mesenteric Vascular Disease"
Diseases that affect the blood vessels supplying the intestines and other abdominal organs (e.g., the belly). It is the form of peripheral arterial disease least likely to result in a condition requiring treatment. More Information on Mesenteric Arterial Disease: Vascular Disease
"PAD of the Renal Arteries" is more commonly referred to as "Renal Artery Stenosis" in the medical community. Renal Artery Stenosis
Also Known As: "Renal Artery Disease"
Peripheral arterial disease (PAD) that occurs in the blood vessels leading to the kidneys. Untreated, can lead to a type of high blood pressure (renovascular hypertension), poor functioning of the kidneys (renal insufficiency) and/or kidney failure. More Information on Renal Artery Stenosis: Vascular Disease
"PAGER" is more commonly referred to as "Pediatric Adolescent Gastroesophageal Reflux Association" in the medical community. Pediatric Adolescent Gastroesophageal Reflux Association
A non-profit organization that promotes research and education concerning gastroesophageal reflux in children and adolescents.
Also Known As: "Mammary Paget's Disease, Paget's Disease of the Breast, Paget's Disease of the Nipple"
A rare form of breast cancer marked by problems with the nipple and areola that include crusty, scaly or red skin and bloody discharge. It is linked to ductal carcinoma in situ (without a breast lump) or invasive ductal carcinoma (with a lump). More Information on Paget's Disease: Breast Cancer
Also Known As: "Mammary Paget's Disease, Paget's Disease of the Nipple"
A rare form of breast cancer marked by problems with the nipple and areola that include crusty, scaly or red skin and bloody discharge. It is linked to ductal carcinoma in situ (without a breast lump) or invasive ductal carcinoma (with a lump). More Information on Paget's Disease of the Breast: Breast Cancer
Also Known As: "Mammary Paget's Disease, Paget's Disease of the Breast"
A rare form of breast cancer marked by problems with the nipple and areola that include crusty, scaly or red skin and bloody discharge. It is linked to ductal carcinoma in situ (without a breast lump) or invasive ductal carcinoma (with a lump). More Information on Paget's Disease of the Nipple: Breast Cancer
"PAH" is more commonly referred to as "Pulmonary Hypertension" in the medical community. Pulmonary Hypertension
Also Known As: "Secondary Pulmonary Hypertension, Ayerza Syndrome, Primary Pulmonary Hypertension, Idiopathic Pulmonary Hypertension, Pulmonary Arterial Hypertension"
High blood pressure in the blood vessels of the lungs. Primary PH has no known cause. Secondary PH is caused by an underlying heart condition, lung disease or pulmonary embolism. PH can result in right-side heart failure (cor pulmonale) over time. More Information on Pulmonary Hypertension: Breathing & Lung
There are many over-the-counter pain and fever medications specifically designed for children. Acetaminophen and ibuprofen may be among the safest. Many adult medications are not effective and could be dangerous in children, even at reduced dosages. More Information on Pain & Fever Medications in Children: Medication & Children
The process of determining the nature and severity of a patient's pain. There are a number of tools that can be used to make an objective classification of pain. More Information on Pain Assessment: Pain Basics
"Pain Avoiding Gait" is more commonly referred to as "Antalgic Gait" in the medical community. Antalgic Gait
A posture, walk or limp, adopted to avoid or reduce pain within a weight-bearing structure (e.g., knee, hip). More Information on Antalgic Gait: Arm & Leg Pain
A sensation of discomfort caused by the stimulation of nerve endings that can occur anywhere in the body. It may be localized in one area or generalized (throughout the body) as well as short term (acute) or long term (chronic). More Information on Pain Basics: Pain Basics
Responses to pain that include talking about pain, grimacing, or sighing, rubbing or protecting an affected part of the body, or avoiding routine activities because of pain. More Information on Pain Behaviors: Pain Basics
A somatoform disorder marked by severe chronic pain at one or more points. Patients feel distress or impairment great enough to impair their ability to function. Psychological factors appear to be behind its onset and severity. More Information on Pain Disorder: Factitious & Related Disorders
"Pain Inventory" is more commonly referred to as "Brief Pain Inventory" in the medical community. Brief Pain Inventory
Also Known As: "BPI"
A brief questionnaire taken by patients that helps physicians to assess their level of pain and to make changes to treatments plans to improve their quality of life. More Information on Brief Pain Inventory: Cancer Basics
Approach to managing pain that may include medications, exercise, application of heat or cold to the body, dieting, nutritional counseling, surgery or other invasive procedures. More Information on Pain Management: Pain Management
Approach to managing pain using techniques appropriate for children that may include medications, exercise, application of heat or cold to the body, surgery or other invasive procedures. More Information on Pain Management in Children: Pain Management
Approach to managing pain using techniques appropriate for the elderly that may include medications, exercise, application of heat or cold to the body, dieting, surgery or other invasive procedures. More Information on Pain Management in Older Adults: Pain Management
Approach to managing pain using techniques appropriate for the elderly that may include medications, exercise, application of heat or cold to the body, dieting, surgery or other invasive procedures. More Information on Pain Management in the Elderly: Pain Management
Medications that reduce pain and most also reduce inflammation. There are many types and may be available over-the-counter or by prescription. They do not eliminate pain, but mask it by increasing the body's pain threshold. More Information on Pain Medications & Cancer: Cancer Drug & Medication
A test that determines the amount of any given substance in the blood and identifies abnormally high or low levels that may affect normal body functions. Blood is usually collected from a vein (venipuncture). More Information on Pain Related Blood Tests: Pain Lab Tests
"Pain Relievers" is more commonly referred to as "Analgesics" in the medical community. Analgesics
Medications that reduce pain. Most also reduce inflammation. There are many types that may be available over-the-counter or by prescription. They do not eliminate pain, but mask it by increasing the body's pain threshold. More Information on Analgesics: Pain Medications
"Painful Bladder Syndrome" is more commonly referred to as "Interstitial Cystitis" in the medical community. Interstitial Cystitis
Also Known As: "Frequency Urgency Dysuria Syndrome, IC"
A chronic inflammation of the bladder that can cause pain and the need to urinate frequently. It is not associated with bacterial infection and cannot be treated with antibiotics. It can occur in men, but is far more common in women. More Information on Interstitial Cystitis: Urinary & Bladder
A form of peripheral neuropathy (nerve damage) primarily affecting the peripheral nervous system. Causes pain and sensitivity to touch. More Information on Painful Diabetic Neuropathy: Neuropathy
Pain in any or a few of the small bumps on the tongue that contain the taste buds. This is most often caused by trauma, such as biting the tongue or burning it with hot foods or liquids. More Information on Painful Nodules of the Tongue: Mouth & Tongue Disorders
Pain in any or a few of the small bumps on the tongue that contain the taste buds. This is most often caused by trauma, such as biting the tongue or burning it with hot foods or liquids. More Information on Painful Papillae of the Tongue: Mouth & Tongue Disorders
The roof of the mouth, which separates the mouth from the nasal cavities. Includes both the hard palate in the front of the mouth and the soft palate in the back. More Information on Palate: Oral Health Basics
"Palatini Tori" is more commonly referred to as "Tori" in the medical community. Tori
Also Known As: "Mandibulari Tori"
A harmless growth of bone, which may occur on the palate (tori palatini) or lower jaw (tori mandibulari). This does not typically cause problems with eating or speaking and cannot become cancerous. More Information on Tori: Oral Health Basics
Treatment that centers on relieving symptoms, but that is not expected to cure or treat the underlying disease. A common form is pain management. More Information on Palliative: Pain Management
Also Known As: "Palliative Treatment, Palliative Therapy"
Treatment that centers on relieving symptoms, but that is not expected to cure or treat the underlying disease. A common form is pain management. More Information on Palliative Care: Healthcare Basics
Treatment that centers on relieving symptoms, but that is not expected to cure or treat the underlying disease. A common form is pain management. More Information on Palliative Therapy: Healthcare Basics
Treatment that centers on relieving symptoms, but that is not expected to cure or treat the underlying disease. A common form is pain management. More Information on Palliative Treatment: Healthcare Basics
An operation in which surgeons destroy small areas of the brain (globus pallidus) in order to alleviate tremors associated with illness such as Parkinson's disease. It is also used to treat muscular rigidity. More Information on Pallidotomy: Movement Disorders
Also Known As: "MISHAP Syndrome, Congenital Hypothalamic Hamartoblastoma, Hypothalamic Hamartoblastoma Syndrome, RALPH Syndrome, Hamartopolydactyly Syndrome, 4H Syndrome, Hall Syndrome II"
A multiple congenital anomaly/mental retardation (MCA/MR) syndrome that may include one or more congenital heart defects such as patent ductus arteriosus, ventricular septal defect, coarctation of the aorta, and mitral or aortic valve defects. More Information on Pallister Hall Syndrome: Pediatric Heart
"Palmar Hyperhidrosis" is more commonly referred to as "Hyperhidrosis" in the medical community. Hyperhidrosis
Also Known As: "Facial Hyperhidrosis, Excessive Perspiration, Center Hyperhidrosis, Excessive Sweating, Maxim Hyperhidrosis, Axillary Hyperhidrosis, Palmoplantar Hyperhidrosis"
Excessive sweating that is either limited to a few problem areas (such as the armpits or palms) or that affects a person's entire body. It often worsens during stress. Treatments - including prescription antiperspirants - are available. More Information on Hyperhidrosis: Perspiration & Chafing
"Palmar Plantar Erythodysthesia" is more commonly referred to as "Hand Foot Syndrome" in the medical community. Hand Foot Syndrome
A grouping of symptoms that occur in the hands and feet that may occur as a result of some cancer treatments. This includes pain, swelling, burning or tingling, numbness or redness. More Information on Hand Foot Syndrome: Cancer Basics
"Palmoplantar Hyperhidrosis" is more commonly referred to as "Hyperhidrosis" in the medical community. Hyperhidrosis
Also Known As: "Facial Hyperhidrosis, Excessive Perspiration, Center Hyperhidrosis, Excessive Sweating, Palmar Hyperhidrosis, Maxim Hyperhidrosis, Axillary Hyperhidrosis"
Excessive sweating that is either limited to a few problem areas (such as the armpits or palms) or that affects a person's entire body. It often worsens during stress. Treatments - including prescription antiperspirants - are available. More Information on Hyperhidrosis: Perspiration & Chafing
Also Known As: "Pustular Psoriasis of the Palms, Pustular Psoriasis of the Soles"
Condition in which tiny fluid-filled blisters appear in patches on the palms of hands and soles of feet. The blisters often fill with pus and turn brown, then scaly. It occurs mostly in smokers and may remain after quitting. More Information on Palmoplantar Pustulosis: Psoriasis & Autoimmune Skin
An awareness of a strong, fast, irregular or "galloping" heartbeat. Palpitations tend to be unpleasant and may even be quite violent. Fortunately, palpitations are usually brief. More Information on Palpitations: Heart Signs & Symptoms
A medical term that refers to paralysis. It is often accompanied by loss of feeling and uncontrolled body movements such as shaking. More Information on Palsy: Neuro Signs & Symptoms
"Paludism" is more commonly referred to as "Malaria" in the medical community. Malaria
Also Known As: "Plasmodium Infection, Jungle Fever, Malaria Disease"
A potentially fatal disease caused by a parasite that is marked by high fevers, shaking, chills and flu-like illness. Four types of malaria parasites infect humans - Plasmodium falciparum, P. vivax, P. ovale and P. malariae. More Information on Malaria: Tropical Disease
Also Known As: "Heart Inflammation, Cardiac Inflammation"
General inflammation of the heart including all three of its layers: The myocardium, pericardium and endocardium. More Information on Pancarditis: Heart Injuries & Infections
Also Known As: "Pulmonary Sulcus Tumor, Superior Sulcus Tumors"
A type of non-small-cell lung cancer that begins in the area of the lungs called the superior sulcus. More Information on Pancoast Tumor: Lung & Chest Cancer
A term describing an overall less stable heart due to multiple areas of plaque rupture. The concept is based on studies showing that most first-time heart attack patients have ruptured plaque both at the heart attack location and other, distant sites. More Information on Pancoronaritis: Heart Injuries & Infections
Cancer that begins in the cells and tissues of the pancreas. It is the fourth leading cause of all cancer deaths in the United States. More Information on Pancreas Cancer: Gastrointestinal System Cancer
An organ about the size of a hand located behind the lower stomach. It plays two vital roles -- making enzymes to help the body digest food (exocrine pancreas) and releasing insulin to help the body turn glucose into energy (endocrine pancreas). More Information on Pancreas Function: Liver, Pancreas & Biliary
An organ about the size of a hand located behind the lower stomach. It plays two vital roles -- making enzymes to help the body digest food (exocrine pancreas) and releasing insulin to help the body turn glucose into energy (endocrine pancreas). More Information on Pancreas Function & Diabetes: Type 1 Diabetes Basics
Also Known As: "Complete Pancreatectomy, Distal Pancreatectomy, Partial Pancreatectomy"
Surgical removal of all or part of the pancreas, including procedures to remove only the body and tail (e.g., distal pancreatectomy). More Information on Pancreas Removal: Liver, Pancreas & Biliary
A procedure by which a pancreas that is not able to produce insulin is removed and replaced with a donor organ. It is reserved for people with type 1 diabetes who have severe complications. People can live normally after donating half their pancreas. More Information on Pancreas Transplant: Liver, Pancreas & Biliary
Also Known As: "Complete Pancreatectomy, Distal Pancreatectomy, Pancreas Removal, Partial Pancreatectomy"
Surgical removal of all or part of the pancreas, including procedures to remove only the body and tail (e.g., distal pancreatectomy). More Information on Pancreatectomy: Liver, Pancreas & Biliary
Cancer that begins in the cells and tissues of the pancreas. It is the fourth leading cause of all cancer deaths in the United States. More Information on Pancreatic Cancer: Gastrointestinal System Cancer
The duct that carries enzymes from the pancreas to the small intestine, where they aid in digestion. More Information on Pancreatic Duct: Liver, Pancreas & Biliary
"Panendoscopy" is more commonly referred to as "Upper Endoscopy" in the medical community. Upper Endoscopy
Also Known As: "Upper GI Endoscopy, Upper Gastrointestinal Endoscopy"
Examination of the upper gastrointestinal system (including the esophagus, stomach and duodenum) with an endoscope. More Information on Upper Endoscopy: Digestive Imaging Tests
Sudden episodes of intense fear that prompt a physical reaction in the body that may resemble a heart attack. Medications, therapy and relaxation techniques are all used to help control or prevent these episodes. More Information on Panic Attacks: Anxiety Disorders
Repeated, sudden attacks of intense fear that cause severe anxiety symptoms in the body. Attacks may last from minutes to hours. The cause is unknown, but appears to be partly hereditary. Men are affected more than women. More Information on Panic Disorder: Anxiety Disorders
Repeated, sudden attacks of intense fear that cause severe anxiety symptoms in the body. It is more likely to begin in adolescence than childhood. Children with panic disorder often are not diagnosed until they are older. More Information on Panic Disorder & Children: Anxiety Disorders
An x-ray that produces an image of all the teeth, the upper and lower jaws, the temporomandibular (jaw) joints and the sinuses above the upper teeth on a single film. More Information on Panoramic Radiograph: Oral Health Basics
An x-ray that produces an image of all the teeth, the upper and lower jaws, the temporomandibular (jaw) joints and the sinuses above the upper teeth on a single film. More Information on Panoramic X ray: Oral Health Basics
"Panretinal Photocoagulation" is more commonly referred to as "Photocoagulation" in the medical community. Photocoagulation
Also Known As: "Focal Photocoagulation, Scatter Photocoagulation"
A primary treatment for diabetic retinopathy. A strong beam of light (laser) seals off bleeding blood vessels in the eye and burns away extra blood vessels that should not have grown there. More Information on Photocoagulation: Eye Conditions
"Pantothenate Kinase Associated Neurodegeneration" is more commonly referred to as "Neurodegeneration with Brain Iron Accumulation" in the medical community. Neurodegeneration with Brain Iron Accumulation
Also Known As: "Hallervorden Spatz Disease"
An inherited, neurological movement disorder marked by progressive degeneration of the nervous system. Periods of relative stability may alternate with periods of rapid deterioration. More Information on Neurodegeneration with Brain Iron Accumulation: Movement Disorders
"Pantothenic Acid" is more commonly referred to as "Vitamin B5" in the medical community. Vitamin B5
An oily acid (and B vitamin) that functions as a growth factor and is widely found in plant and animal tissues. More Information on Vitamin B5: Vitamins
"Panwarfin" is more commonly referred to as "Coumadin" in the medical community. Coumadin
Also Known As: "Sofarin"
A brand of anticoagulants, medications that decrease the ability of the blood to clot. While clotting is a necessary and life-sustaining function, anticoagulants reduce the risk of a clot forming and blocking blood flow through a major blood vessel. More Information on Coumadin: Heart Drug & Medication
"PAOD" is more commonly referred to as "Peripheral Arterial Disease" in the medical community. Peripheral Arterial Disease
Also Known As: "Peripheral Arterial Occlusive Disease, Peripheral Artery Disease, Obliterans, PAD"
Hardening or narrowing of the blood vessels in the arms, legs, abdomen, kidneys or carotid arteries (supplying blood to the brain). Like coronary artery disease (which affects the arteries of the heart), PAD can lead to a restriction of blood flow. More Information on Peripheral Arterial Disease: Vascular Disease
"PAP" is more commonly referred to as "Prostatic Acid Phosphatase" in the medical community. Prostatic Acid Phosphatase
An enzyme produced in the prostate. Elevated levels in the blood may indicate prostate cancer that has spread beyond the prostate. However, PAP blood testing has largely been replaced by the PSA (protein specific antigen) test. More Information on Prostatic Acid Phosphatase: Prostate & Testicular
Also Known As: "Papanicolaou Test, Pap Test, Cervical Cytology, Cervicovaginal Cytology, Papanicolaou Smear"
A test performed as part of a regular gynecological exam in which a scraping is taken from the cervix for later examination under a microscope. It is used to detect abnormal cells that may indicate cancer or may become cancerous. More Information on Pap Smear: Vaginal & Cervical Health
Also Known As: "Cervical Cytology, Cervicovaginal Cytology, Papanicolaou Smear, Papanicolaou Test"
A test performed as part of a regular gynecological exam in which a scraping is taken from the cervix for later examination under a microscope. It is used to detect abnormal cells that may indicate cancer or may become cancerous. More Information on Pap Test: Vaginal & Cervical Health
Also Known As: "Cervical Cytology, Cervicovaginal Cytology, Papanicolaou Test, Pap Test"
A test performed as part of a regular gynecological exam in which a scraping is taken from the cervix for later examination under a microscope. It is used to detect abnormal cells that may indicate cancer or may become cancerous. More Information on Papanicolaou Smear: Vaginal & Cervical Health
Also Known As: "Pap Test, Cervical Cytology, Cervicovaginal Cytology, Papanicolaou Smear"
A test performed as part of a regular gynecological exam in which a scraping is taken from the cervix for later examination under a microscope. It is used to detect abnormal cells that may indicate cancer or may become cancerous. More Information on Papanicolaou Test: Vaginal & Cervical Health
Also Known As: "Papillary Cancer, Papillary Tumor"
A term used to describe cancer cells that mass in a tiny, finger-like pattern. Tumor shape sometimes impacts treatment options. These tumors may form in the ovaries, uterus, thyroid gland, breasts and other body areas. More Information on Papillary: Cancer Basics
A term used to describe cancer cells that mass in a tiny, finger-like pattern. Tumor shape sometimes impacts treatment options. These tumors may form in the ovaries, uterus, thyroid gland, breasts and other body areas. More Information on Papillary Cancer: Cancer Basics
Damage, disease or malfunction of the papillary muscle of the heart, which attaches to the chordae tendineae and controls the ability of the heart's valves to open and close properly.
Damage, disease or malfunction of the papillary muscle of the heart, which attaches to the chordae tendineae and controls the ability of the heart's valves to open and close properly.
"Papillary Thyroid Cancers" is more commonly referred to as "Thyroid Cancers" in the medical community. Thyroid Cancers
Also Known As: "Medullary Thyroid Carcinoma, Anaplastic Thyroid Cancers, Papillary Thyroid Carcinoma, Well Differentiated Thyroid Cancers, Follicular Thyroid Cancers"
Cancerous tumor or growth within the thyroid gland. It is the most common type of endocrine cancer. More Information on Thyroid Cancers: Endocrine System Cancer
"Papillary Thyroid Carcinoma" is more commonly referred to as "Thyroid Cancers" in the medical community. Thyroid Cancers
Also Known As: "Medullary Thyroid Carcinoma, Anaplastic Thyroid Cancers, Well Differentiated Thyroid Cancers, Follicular Thyroid Cancers, Papillary Thyroid Cancers"
Cancerous tumor or growth within the thyroid gland. It is the most common type of endocrine cancer. More Information on Thyroid Cancers: Endocrine System Cancer
A term used to describe cancer cells that mass in a tiny, finger-like pattern. Tumor shape sometimes impacts treatment options. These tumors may form in the ovaries, uterus, thyroid gland, breasts and other body areas. More Information on Papillary Tumor: Cancer Basics
"Papillomas" is more commonly referred to as "Benign Proliferative Breast Disease" in the medical community. Benign Proliferative Breast Disease
Also Known As: "Benign Breast Hyperplasia, Ductal Hyperplasia, BPBD, Lobular Hyperplasia, Breast Hyperplasia"
A group of breast-related conditions that, while noncancerous (benign), increase the risk of developing breast cancer. These include ductal hyperplasia, lobular hyperplasia and papillomas. More Information on Benign Proliferative Breast Disease: Breast Health
A small, solid and usually inflammatory bump on the skin that does not contain pus (thick white or yellowish fluid that forms in areas of infection). More Information on Papules: Skin Growths
"PAPVC" is more commonly referred to as "TAPVR" in the medical community. TAPVR
Also Known As: "Total Anomalous Pulmonary Venous Return, Anomalous Drainage of Pulmonary Veins"
A condition in which the four pulmonary veins that bring oxygen-rich blood from the lungs back to the heart are not connected to the left atrium, the chamber into which they are supposed to re-enter the heart. More Information on TAPVR: Pediatric Heart
An additive commonly used to preserve foods and medications. Some individuals experience an allergic reaction to the substance, with contact dermatitis or other skin conditions often resulting. In rare cases, it can trigger anaphylactic shock. More Information on Parabens: Food Allergy & Intolerance
Diarrhea that flows around a fecal impaction, often due to a viral infection or excessive use of laxatives. More Information on Paradoxical Diarrhea: IBS & Bowel Function
"Paradoxical Embolism" is more commonly referred to as "Embolism" in the medical community. Embolism
Also Known As: "Thromboembolism"
The obstruction of a blood vessel by a foreign substance, such as a blood clot, which has traveled through the bloodstream from another part of the body. More Information on Embolism: Blood Clot
Also Known As: "Kussmaul's Pulse, Pulsus Paradoxus"
A type of pulse that is very weak at the end of each deep breath. It may be a sign of pericarditis, an inflammation of the pericardium (a thin, fluid filled sac surrounding the heart).
Also Known As: "Parahiatal Hernia, Paraesophageal Hiatus Hernia, Rolling Hiatal Hernia"
A hiatal hernia that occurs when a portion of the stomach squeezes through the opening of the diaphragm and becomes positioned next to the esophagus. More Information on Paraesophageal Hiatal Hernia: GERD & Heartburn
Also Known As: "Rolling Hiatal Hernia, Parahiatal Hernia"
A hiatal hernia that occurs when a portion of the stomach squeezes through the opening of the diaphragm and becomes positioned next to the esophagus. More Information on Paraesophageal Hiatus Hernia: GERD & Heartburn
A persistent abnormal taste in the mouth, most commonly metallic, salty, foul or rancid. It has numerous causes, many of which are temporary. More Information on Parageusia: Oral Signs & Symptoms
Infestation with a worm of the genus Paragonimus. It typically invades the lung, producing chronic bronchitis with cough and reddish or brownish sputum. More Information on Paragonimiasis: Pneumonia & Lung Infection
Infestation with a worm of the genus Paragonimus. It typically invades the lung, producing chronic bronchitis with cough and reddish or brownish sputum. More Information on Paragonimus Infection: Pneumonia & Lung Infection
Also Known As: "Paraesophageal Hiatus Hernia, Rolling Hiatal Hernia"
A hiatal hernia that occurs when a portion of the stomach squeezes through the opening of the diaphragm and becomes positioned next to the esophagus. More Information on Parahiatal Hernia: GERD & Heartburn
"Paralytic Ileus" is more commonly referred to as "Ileus" in the medical community. Ileus
Also Known As: "Adynamic Ileus, Paresis"
Loss of the ability for intestinal muscles to contract, resulting in obstruction due to inability to move food through the bowels. More Information on Ileus: Inflammatory Bowel (Colitis)
"Paralytic Polio" is more commonly referred to as "Polio" in the medical community. Polio
Also Known As: "Asymptomatic Polio, Poliomyelitis, Abortive Polio, Infantile Paralysis, Symptomatic Polio, Nonparalytic Polio, Spinal Polio"
A contagious viral infection that affects the nervous system and may cause paralysis. It is most common in children under the age of 3. Use of vaccines to prevent polio has virtually eliminated the disease in the Western Hemisphere. More Information on Polio: Infectious Disease Basics
Food poisoning due to consumption of shellfish, especially two-shelled mollusks (e.g., clams, mussels, scallops) contaminated with dinoflagellates. Symptoms include paresthesia, nausea, vomiting, muscle weakness and sometimes paralysis. More Information on Paralytic Shellfish Poisoning: Gastroenteritis & Food Illness
A type of pelvic inflammatory disease in which an infection rises from the vagina or cervix into the uterine serosa and broad ligaments. More Information on Parametritis: Uterine & Ovarian Health
"Paranasal Cancers" is more commonly referred to as "Nasal Cancers" in the medical community. Nasal Cancers
Also Known As: "Nose Cancers"
Cancer in or around the nasal passages, symptoms of which may be confused with rhinosinusitis. Of the six sinuses, cancer of the maxillary sinus is the most common. More Information on Nasal Cancers: Head, Neck & Mouth Cancer
"Paranasal Sinuses" is more commonly referred to as "Sinuses" in the medical community. Sinuses
Also Known As: "Sinus Cavities, Frontal Sinuses, Maxillary Sinuses, Sphenoid Sinuses, Nasal Sinuses, Ethmoid Sinuses"
Air-filled cavities or packets located within the bones around the nose and face. They are named for the bones they inhabit: Maxillary (cheek), ethmoid (between the eyes), frontal (forehead) and sphenoid (middle of skull). More Information on Sinuses: Nose & Throat
A type of pemphigus (an autoimmune disease) that affects patients already diagnosed with cancer. It is marked by painful denuded areas of the mouth, lips, esophagus and skin. It usually does not respond well to treatment. More Information on Paraneoplastic Pemphigus: Psoriasis & Autoimmune Skin
A group of syndromes that occur when cancer cells release substances that disrupt body functions. Neurologic paraneoplastic syndromes likely occur when cancer-fighting antibodies or white blood cells attack normal nervous system cells. More Information on Paraneoplastic Syndromes: Cancer Basics
Feelings of persecution and exaggerated sense of self-importance that usually are part of a larger mental disorder. Patients may feel intense and irrational mistrust or suspicion that spurs rage, hatred and betrayal. More Information on Paranoia: Emotional Signs & Symptoms
Feelings of persecution and exaggerated sense of self-importance that usually are part of a larger mental disorder. Patients may feel intense and irrational mistrust or suspicion that spurs rage, hatred and betrayal. More Information on Paranoid Disorder: Emotional Signs & Symptoms
Condition marked by extreme distrust and suspicion of others. Most patients are unable to acknowledge these negative feelings toward others. Treatment is difficult, but both medications and therapy can help. More Information on Paranoid Personality Disorder: Personality Disorders
A form of schizophrenia marked by feelings of persecution, grandiose delusions and auditory hallucinations. Symptoms may include anger, anxiety, aloofness and doubts about gender identity. More Information on Paranoid Schizophrenia: Schizophrenia & Psychosis
A form of schizophrenia marked by feelings of persecution, grandiose delusions and auditory hallucinations. Symptoms may include anger, anxiety, aloofness and doubts about gender identity. More Information on Paranoid Type Schizophrenia: Schizophrenia & Psychosis
Also Known As: "Abnormal Sexual Behaviors, Perverse Sexual Behaviors, Deviant Sexual Behaviors, Deviant Sexual Arousal"
Any of a variety of sexual behaviors that are generally regarded as distasteful, unusual or abnormal. These include fetishism, pedophilia, sexual masochism or sadism and voyeurism, among others. More Information on Paraphilias: Impulse Control Disorders
Paralysis below the waist, including both legs. The extent to which the trunk is involved varies. It occurs due to spinal cord damage at or below the T1 vertebrae. More Information on Paraplegia: Neuro Signs & Symptoms
An organism that grows, feeds and is sheltered on or in another organism (host). It does not kill the host but contributes nothing to the host's survival. More Information on Parasite: Parasitic Disease
Infections with another organism, such as intestinal worms. Children are particularly susceptible to these infections. More Information on Parasitic Diseases: Parasitic Disease
Infections with another organism, such as intestinal worms. Children are particularly susceptible to these infections. More Information on Parasitic Infections: Parasitic Disease
"Parasitic Pneumonia" is more commonly referred to as "Pneumonia" in the medical community. Pneumonia
Also Known As: "Irritant Pneumonia, Fungal Pneumonia, Allergic Pneumonia, Bacterial Pneumonia, Chemical Pneumonia, Viral Pneumonia"
Inflammation of the lungs with congestion that may be caused by infection (e.g., bacteria, virus, fungi, parasites) or irritants (e.g., allergens, pollutants, chemicals). Common symptoms include fever, chills, coughing and/or difficulty breathing. More Information on Pneumonia: Pneumonia & Lung Infection
"Parasitic Roundworm" is more commonly referred to as "Roundworm" in the medical community. Roundworm
Also Known As: "Intestinal Roundworm, Zoonotic Roundworm, Roundworm Infection"
Infection with any of a group of invertebrates with long, round bodies. Examples include enterobiasis, ascariasis, ancylostomiasis, trichuriasis, strongyloidiasis, toxocariasis and trichinosis. More Information on Roundworm: Infectious Disease Basics
Abnormal behaviors during sleep. Examples include sleepwalking, night terrors and bedwetting. Many parasomnias are more common in children than adults. More Information on Parasomnias: Sleep
Any act that resembles suicide but which is not intended to result in death. Examples include cutting oneself. Some people use this behavior to soothe themselves. People who engage in these behaviors are at higher risk of suicide. More Information on Parasuicidal Behavior: Suicide Information
Any act that resembles suicide but which is not intended to result in death. Examples include cutting oneself. Some people use this behavior to soothe themselves. People who engage in these behaviors are at higher risk of suicide. More Information on Parasuicide: Suicide Information
One of the two branches (along with the sympathetic nervous system) of the autonomic nervous system, which controls involuntary functions. The parasympathetic nervous system tends to slow and relax functions after stress. More Information on Parasympathetic Nervous System: Brain & Nerve Basics
Very rare cancer of the parathyroid gland (at the base of the neck, near the thyroid gland). The parathyroid gland makes a hormone which helps the body store and use calcium. More Information on Parathyroid Cancer: Endocrine System Cancer
Group of conditions that disrupt the parathyroid gland, which regulates calcium and phosphorus in the body. As a result, teeth, bones, nervous system and muscle can be affected. Examples include hyperparathyroidism and hypercalcemia. More Information on Parathyroid Disorders: Thyroid & Parathyroid
Endocrine glands located in the neck that produce parathyroid hormone, which helps regulate the body's calcium balance. They are located in front of the neck, below the voice box (larynx). More Information on Parathyroid Glands: Thyroid & Parathyroid
A hormone secreted by the parathyroid glands when blood calcium levels fall. It stimulates bone to release calcium and the intestines to absorb calcium. At the same time, it decreases calcium excretion by the kidneys. More Information on Parathyroid Hormone: Thyroid & Parathyroid
Surgery or medication used to correct abnormalities in the production of hormones by the parathyroid gland. More Information on Parathyroid Treatments: Thyroid & Parathyroid
"Paregoric" is more commonly referred to as "Loperamide" in the medical community. Loperamide
Also Known As: "Diphenoxylate Atropine"
A type of antimotility drug (a form of antidiarrheals). It works by slowing down the contractions of intestinal muscles so that stool travels more slowly through the digestive tract, allowing more fluid to be absorbed by the intestines. More Information on Loperamide: Digestive Medications
Parents nurture, guide and protect their children and serve as role models. It is important to show love to children and to spend time with them, communicating openly and responding to their questions and concerns. More Information on Parent Child Relationships: Relationships
Also Known As: "Total Parenteral Nutrition, TPN, Hyperalimentation"
Nutrition given through an IV. It may be used for people who are unable to absorb nutrients through eating because of prolonged vomiting, diarrhea or other conditions. More Information on Parenteral Nutrition: Digestive Treatments
Instruction offered by therapists or through special classes to help manage a child's behavior. Parents may learn to give rewards and penalties, structure situations to help children succeed, and manage their own stress. More Information on Parenting Skills Training: Therapy & Support
It is important to understand and acknowledge the mental illness of a parent rather than deny it. Coping strategies include support from others, both without the family and outside, involvement in outside social activities and active psychotherapy. More Information on Parents with Mental Illness: Emotional Health Basics
"Paresis" is more commonly referred to as "Ileus" in the medical community. Ileus
Also Known As: "Paralytic Ileus, Adynamic Ileus"
Loss of the ability for intestinal muscles to contract, resulting in obstruction due to inability to move food through the bowels. More Information on Ileus: Inflammatory Bowel (Colitis)
A burning or prickling sensation usually felt in the hands, arms, legs or feet. It strikes without warning and is usually painless. Chronic paresthesia is often a symptom of an underlying neurological disease or traumatic nerve damage. More Information on Paresthesia: Neuro Signs & Symptoms
A group of motor system disorders due to loss of dopamine-producing brain cells. The four main symptoms are tremors (in hands, arms, legs, jaw and face), rigidity of limbs and trunk, slowness of movement, and postural instability. More Information on Parkinson's Disease: Movement Disorders
A general term that refers to slowness and mobility problems resembling Parkinson's disease. Conditions such as multiple system atrophy and progressive supranuclear palsy are associated with this term. More Information on Parkinsonism: Movement Disorders
Also Known As: "Acute Paronychia, Chronic Paronychia"
Often tender infection of inflammation around the base of the nail fold that either starts suddenly (acute) or gradually (chronic). It is characterized by red, swollen, tender nail folds. More Information on Paronychia Nail Infection: Skin Related Infections
A sudden, temporary episode in which the heartbeat is abnormally fast due to a problem in the upper chambers of the heart (atria). The rate is usually between 150 and 240 beats per minute. Longer episodes may be a sign of an underlying condition. More Information on Paroxysmal Atrial Tachycardia: Arrhythmia
A movement disorder marked by attacks of involuntary movements of the limbs, trunk and facial muscles. It sometimes occurs in several members of a family. Drug therapy often is effective in reducing or eliminating symptoms. More Information on Paroxysmal Choreoathetosis: Movement Disorders
A rare form of severe and throbbing headache. Patients feel pain usually on one side of the face; in, around or behind the eye; and sometimes at back of the neck. Attacks occur up to 40 times a day and last two to 45 minutes. More Information on Paroxysmal Hemicrania: Headache & Migraine
"Paroxysmal Nocturnal Dyspnea" is more commonly referred to as "Shortness of Breath" in the medical community. Shortness of Breath
Also Known As: "Breathlessness, Dyspnea"
The feeling one is not getting enough air, which may leave a person gasping. Asthma is one cause, which may be triggered by an allergic reaction. More Information on Shortness of Breath: Breathing & Lung
"Paroxysmal Supraventricular Tachycardia" is more commonly referred to as "Supraventricular Tachycardia" in the medical community. Supraventricular Tachycardia
Also Known As: "SVT, Sustained Paroxysmal Supraventricular Tachycardia, Sustained PSVT, PSVT"
A type of tachycardia, or rapid heart beat, that originates in either the heart's upper chambers (atria) or the AV node. It may come and go (paroxysmal) or occur more regularly (sustained). More Information on Supraventricular Tachycardia: Arrhythmia
A disorder marked by progressive deterioration of the skin and soft tissues of half of the face, usually on the left side. It is more common in females than in males. There is no cure and surgery may be needed to repair wasted tissue. More Information on Parry Romberg: Brain & Nerve Basics
"Parry's Disease" is more commonly referred to as "Kufs Disease" in the medical community. Kufs Disease
Also Known As: "Adult NCL, Adult Neuronal Ceroid Lipofuscinosis"
A type of adult-onset neuronal ceroid lipofuscinosis, a progressive neurological disease that usually begins in childhood. It usually begins by age 40. While the age of death varies, it generally shortens life expectancy. More Information on Kufs Disease: Pediatric Brain & Nerve
"Partial Atrioventricular Canal Defect" is more commonly referred to as "AV Septal Defect" in the medical community. AV Septal Defect
Also Known As: "Atrioventricular Canal Defect, Common Atrioventricular Canal Defect, Atrioventricular Septal Defect, Endocardial Cushion Defect, Complete Atrioventricular Canal Defect, AVSD, AV Canal Defect, Ostium Primum Atrial Septal Defect"
A term used to describe a number of heart defects that result in blood flowing freely across the heart and between the chambers. Often, there is also leakage of blood from the lower chambers back to the upper chambers, which is the wrong direction. More Information on AV Septal Defect: Pediatric Heart
"Partial Colectomy" is more commonly referred to as "Colectomy" in the medical community. Colectomy
Also Known As: "Left Hemicolectomy, Bowel Resection, Open Colectomy, Right Hemicolectomy, Laparoscopic Colectomy, Sigmoid Colectomy, Hemicolectomy"
Surgical removal of all or part of the colon (large intestine). Partial colectomy may also be called hemicolectomy. It may be performed in a open procedure (one large incision) or through laparoscopy (uses a camera and several smaller incisions). More Information on Colectomy: Digestive Treatments
"Partial Cystectomy" is more commonly referred to as "Cystectomy" in the medical community. Cystectomy
Also Known As: "Complete Cystectomy, Segmental Cystectomy, Bladder Cystectomy"
Surgical removal of part (partial or segmental cystectomy) or all (complete cystectomy) of the bladder. More Information on Cystectomy: Kidney, Liver & Urinary Cancer
"Partial Dentures" is more commonly referred to as "Bridges" in the medical community. Bridges
Also Known As: "Removable Partial Dentures, Removable Bridges, Fixed Partial Dentures, Fixed Bridges"
Dental structures that replace missing teeth with connected artificial teeth. Different types can be removable, fixed securely to the surrounding teeth or implanted directly to the jaw. More Information on Bridges: Bridges, Dentures & Implants
A group of birth defects caused by fetal alcohol exposure that include some, but not all, signs of fetal alcohol syndrome. More Information on Partial Fetal Alcohol Syndrome: Birth & Genetic Disorders
"Partial LBBB" is more commonly referred to as "Left Bundle Branch Block" in the medical community. Left Bundle Branch Block
Also Known As: "Complete Left Bundle Branch Block, Complete LBBB, LBBB, Incomplete Left Bundle Branch Block, Incomplete LBBB, Partial Left Bundle Branch Block"
An abnormal heart rhythm in which the electrical impulses through the heart's left bundle branch are delayed or blocked. It is "partial" or "incomplete" when involving either the anterior or posterior sections and "complete" when involving both. More Information on Left Bundle Branch Block: Arrhythmia
"Partial Left Bundle Branch Block" is more commonly referred to as "Left Bundle Branch Block" in the medical community. Left Bundle Branch Block
Also Known As: "Complete Left Bundle Branch Block, Complete LBBB, Partial LBBB, LBBB, Incomplete Left Bundle Branch Block, Incomplete LBBB"
An abnormal heart rhythm in which the electrical impulses through the heart's left bundle branch are delayed or blocked. It is "partial" or "incomplete" when involving either the anterior or posterior sections and "complete" when involving both. More Information on Left Bundle Branch Block: Arrhythmia
"Partial Left Ventriculectomy Procedure" is more commonly referred to as "Batista Procedure" in the medical community. Batista Procedure
Also Known As: "Batista, Ventricular Resection"
An open-heart surgery to reduce an enlarged heart. A wedge-shaped piece of the heart muscle is removed and the sides of the wound are then pulled together, reducing the overall size of the heart. It is still considered experimental. More Information on Batista Procedure: Heart Failure
"Partial Mastectomy" is more commonly referred to as "Lumpectomy" in the medical community. Lumpectomy
Also Known As: "Limited Breast Surgery, Segmental Mastectomy, Breast Conservation Therapy, Tylectomy, Breast Sparing Surgery, Breast Conservation Surgery, Segmental Breast Excision"
Surgical removal of the cancerous tissue within the breast without removing any other part of the breast. It may also include removal of the lymph nodes in the armpit (axilla). More Information on Lumpectomy: Breast Cancer
Also Known As: "Complete Pancreatectomy, Distal Pancreatectomy, Pancreas Removal"
Surgical removal of all or part of the pancreas, including procedures to remove only the body and tail (e.g., distal pancreatectomy). More Information on Partial Pancreatectomy: Liver, Pancreas & Biliary
"Partial Prostatectomy" is more commonly referred to as "Prostatectomy" in the medical community. Prostatectomy
Also Known As: "Laparoscopic Prostatectomy, Simple Prostatectomy, Open Prostatectomy, Retropubic Prostatectomy, Radical Prostatectomy, Transurethral Prostatectomy, Perineal Prostatectomy"
Surgical removal of all or part of the prostate gland and, in some cases, the surrounding lymph nodes. It may be performed in an open procedure, by laparoscopy or through the urethra (transurethral). More Information on Prostatectomy: Prostate & Testicular
"Partial Prothrombin Time" is more commonly referred to as "Prothrombin Time" in the medical community. Prothrombin Time
Also Known As: "APTT, Pro-Time, PPT, PT Time, Partial Thromboplastin Time, PCT"
One of several blood tests that measure the time it takes for blood to clot. Results are adjusted with the international normalization ratio (INR), which physicians use to monitor patients on anticoagulant therapy.
"Partial Remission" is more commonly referred to as "Remission" in the medical community. Remission
Also Known As: "Complete Response, Complete Remission"
The absence of disease activity in a patient with a known chronic medical condition, such as cancer. It is not a cure, but a partial or complete disappearance of symptoms that may last be temporary or permanent. More Information on Remission: Cancer Basics
"Partial Right Bundle Branch Block" is more commonly referred to as "Right Bundle Branch Block" in the medical community. Right Bundle Branch Block
Also Known As: "RBBB, Incomplete Right Bundle Branch Block, Complete Right Bundle Branch Block"
An abnormal heart rhythm caused by delayed or blocked transmission of electrical impulses through the right bundle branch of the heart. More Information on Right Bundle Branch Block: Arrhythmia
Also Known As: "Complex Partial Seizures, Focal Seizures, Simple Partial Seizures"
Seizures that only affect a specific area of the brain. They can be simple, where consciousness is maintained, or complex, where consciousness is lost or impaired. More Information on Partial Seizures: Epilepsy & Seizure
"Partial Thromboplastin Time" is more commonly referred to as "Prothrombin Time" in the medical community. Prothrombin Time
Also Known As: "PCT, Partial Prothrombin Time, APTT, Pro-Time, PPT, PT Time"
One of several blood tests that measure the time it takes for blood to clot. Results are adjusted with the international normalization ratio (INR), which physicians use to monitor patients on anticoagulant therapy.
An obsession or reliance on a particular part of the body for gratification, particularly sexual gratification. For example, what is commonly called a "foot fetish" would actually be a form of partialism. More Information on Partialism: Impulse Control Disorders
A nonprofit organization to help consumers learn about their options for end-of-life care. As ?America?s Voices for the Dying?, the Partnership for Caring raises awareness about advanced directives such as living wills and medical powers of attorney.
"Parturition" is more commonly referred to as "Labor & Delivery" in the medical community. Labor & Delivery
Also Known As: "Childbirth"
The expulsion of the fetus during birth from the uterus through the vagina to the outside of the body. Stages include dilation, expulsion and the placental stage. More Information on Labor & Delivery: Pregnancy Basics
"Parvovirus B19" is more commonly referred to as "Fifth Disease" in the medical community. Fifth Disease
Also Known As: "Slapped Cheek, Erythema Infectiosum"
Viral disease that usually affects children. Also known as fifth disease, it produces a distinctive red rash on the face that spreads to the trunk, arms, and legs. It is relatively common and mildly contagious. More Information on Fifth Disease: Skin Related Infections
Also Known As: "Passive Aggressive Personality Disorder, Passive Aggressive Behavior"
Behavior in which a person appears to passively comply with others' requests, but in reality passively resists while becoming increasingly hostile. Passive-aggressive personality disorder no longer is diagnosed as a condition. More Information on Passive Aggression: Personality Disorders
Also Known As: "Passive Aggressive Behavior, Passive Aggression, Passive Aggressive Personality Disorder"
Behavior in which a person appears to passively comply with others' requests, but in reality passively resists while becoming increasingly hostile. Passive-aggressive personality disorder no longer is diagnosed as a condition. More Information on Passive Aggressive: Personality Disorders
Also Known As: "Passive Aggression, Passive Aggressive Personality Disorder"
Behavior in which a person appears to passively comply with others' requests, but in reality passively resists while becoming increasingly hostile. Passive-aggressive personality disorder no longer is diagnosed as a condition. More Information on Passive Aggressive Behavior: Personality Disorders
Also Known As: "Passive Aggressive Behavior, Passive Aggression"
Behavior in which a person appears to passively comply with others' requests, but in reality passively resists while becoming increasingly hostile. Passive-aggressive personality disorder no longer is diagnosed as a condition. More Information on Passive Aggressive Personality Disorder: Personality Disorders
"Passive Scopophilia" is more commonly referred to as "Sexual Exhibitionism" in the medical community. Sexual Exhibitionism
Also Known As: "Flashing"
A type of paraphilia marked by getting sexual gratification from exposing one's genitals to an observer, often an unwilling stranger. More Information on Sexual Exhibitionism: Impulse Control Disorders
"Passive Smoke" is more commonly referred to as "Secondhand Smoke" in the medical community. Secondhand Smoke
Smoke that is exhaled by people smoking cigarettes. It can lead to many problems in children, including lung infections and asthma. More Information on Secondhand Smoke: Smoking & Tobacco
Bacterial disease that may result from animal bites, scratches or licks. The condition may cause local or full-body disease that is treated with antibiotics. More Information on Pasteurella Multocida Infection: Infectious Disease Basics
Heating a food enough to destroy the most heat-resistant pathogenic or disease-causing bacteria associated with the food. This typically involves heating liquid foods to a prescribed temperature for a specified time. More Information on Pasteurization: Nutrition Basics
A sudden, temporary episode in which the heartbeat is abnormally fast due to a problem in the upper chambers of the heart (atria). The rate is usually between 150 and 240 beats per minute. Longer episodes may be a sign of an underlying condition. More Information on PAT: Arrhythmia
"Patch" is more commonly referred to as "Contraceptive Patch" in the medical community. Contraceptive Patch
Also Known As: "Birth Control Patch"
A method of contraception that places a patch containing hormones onto the skin of the buttocks, abdomen, upper torso or upper outer arm. A different patch is worn for one week, over a three-week period. More Information on Contraceptive Patch: Contraception
"Patch Test" is more commonly referred to as "Allergy Patch Test" in the medical community. Allergy Patch Test
Also Known As: "Skin Patch Test"
A safe method to identify allergens that cause contact dermatitis. Small amounts of allergens are applied to the skin on strips of tape and removed after two days. A positive allergy test shows up as a small red spot at the site of the patch. More Information on Allergy Patch Test: Allergy & Asthma Tests
Also Known As: "Persistent Patent Ductus Arteriosus, PDA, Persistent PDA"
A condition in which the prenatal channel between the aorta and the pulmonary artery (ductus arteriosus) remains open (patent) at birth. Normally, the ductus arteriosus should close as the baby starts breathing. More Information on Patent Ductus Arteriosus: Pediatric Heart
A condition in which the foramen ovale fails to close after birth. The foramen ovale is an opening between the right and left atria (upper heart chambers) in the fetal heart that allows blood to circulate between these two chambers. More Information on Patent Foramen Ovale: Pediatric Heart
"Paterson Kelly Syndrome" is more commonly referred to as "Sideropenic Dysphagia" in the medical community. Sideropenic Dysphagia
Also Known As: "Plummer Vinson Syndrome"
A disorder that increases the risk of esophageal cancer. It involves iron deficiency and web-like growths in the throat that make it difficult to swallow. More Information on Sideropenic Dysphagia: Head, Neck & Mouth Cancer
Any foreign agent that causes disease in the body. This usually refers to a microorganism (e.g., bacteria, viruses, parasites, fungi). Within the same microorganism group (e.g., bacteria), some types may be pathogens while others are not. More Information on Pathogen: Infectious Disease Basics
"Pathological Gambling" is more commonly referred to as "Gambling Addiction" in the medical community. Gambling Addiction
Also Known As: "Gambling Problem, Compulsive Gambling"
The uncontrollable, pathological urge to gamble. Patients suffering from this experience significant financial hardship which often results in troubles in all areas of life, including work, school and relationships. More Information on Gambling Addiction: Impulse Control Disorders
A physician who specializes in the diagnosis of diseases through microscopic examination of body cells and tissues. This includes determining whether a tumor is benign or cancerous and the exact form of cancer, if present. More Information on Pathologist: Cancer Basics
A technique for pain management that allows the patient to control the amount of medication they receive through and intravenous (IV) line. Patients press a button to release a dose of medication. The system includes safeguards against overdose. More Information on Patient Controlled Analgesia: Pain Management
"PATS" is more commonly referred to as "Preschool ADHD Treatment Study" in the medical community. Preschool ADHD Treatment Study
A study sponsored by the National Institute of Mental Health into the safety and efficacy of using the stimulant methylphenidate to treat ADHD in this age group.
Also Known As: "Pauciarticular Juvenile Rheumatoid Arthritis"
A form of juvenile rheumatoid arthritis that affects four joints or fewer (as opposed to polyarticular, which affects 5 or more). It usually involves the larger joints (e.g., knees, ankles, elbows) and may occur on only one side of the body. More Information on Pauciarticular JRA: Arthritis
A form of juvenile rheumatoid arthritis that affects four joints or fewer (as opposed to polyarticular, which affects 5 or more). It usually involves the larger joints (e.g., knees, ankles, elbows) and may occur on only one side of the body. More Information on Pauciarticular Juvenile Rheumatoid Arthritis: Arthritis
"PAWP" is more commonly referred to as "Pulmonary Artery Wedge Pressure" in the medical community. Pulmonary Artery Wedge Pressure
Also Known As: "Left Atrial Pressure, Atrial Pressure"
An indirect measurement of pressure in the left atrium, because direct measurement is rather risky. A balloon-tipped catheter is inserted into the pulmonary artery, and the balloon is inflated, wedging itself in. Pressure can then be measured.
"PBC" is more commonly referred to as "Primary Biliary Cirrhosis" in the medical community. Primary Biliary Cirrhosis
A chronic liver disease where the bile ducts in the liver are slowly destroyed, preventing the release of bile. Scarring and cirrhosis may occur in later stages of the disease. More Information on Primary Biliary Cirrhosis: Liver, Pancreas & Biliary
A mixture of eight herbs sold as a dietary supplement. Early clinical trials showed some anti-cancer effects before it was removed from the market due to contamination. However, (unproven) substances still produced may be marketed as being similar.
"PC-MR" is more commonly referred to as "Phase Contrast MRI" in the medical community. Phase Contrast MRI
Also Known As: "Phase Contrast Magnetic Resonance Imaging"
A magnetic resonance imaging (MRI) scan performed after the injection of a contrast medium (a dye that makes blood vessels more visible). PC-MRI may be better than an angiogram at detecting whether a vessel has closed after an angioplasty. More Information on Phase Contrast MRI: Heart Imaging & Rhythm Tests
A technique for pain management that allows the patient to control the amount of medication they receive through and intravenous (IV) line. Patients press a button to release a dose of medication. The system includes safeguards against overdose. More Information on PCA: Pain Management
"PCI" is more commonly referred to as "Percutaneous Coronary Interventions" in the medical community. Percutaneous Coronary Interventions
A term used to describe any catheter-based procedures aimed at relieving narrowing or blockage of a coronary artery (atherosclerosis). It includes balloon angioplasty, laser angioplasty, all forms of atherectomy and stenting. More Information on Percutaneous Coronary Interventions: Catheter Tests & Procedures
"PCOS" is more commonly referred to as "Polycystic Ovarian Syndrome" in the medical community. Polycystic Ovarian Syndrome
Also Known As: "Polyfollicular Ovarian Disease, Polycystic Ovarian Disease, Polyfollicular Ovaries, Polycystic Ovary Syndrome, Stein Leventhal Syndrome, Hyperandrogenic Anovulation Syndrome"
An endocrine and hormonal disorder that is the most common cause of female infertility. It involves the overproduction of androgens (male hormones) that cause problems with ovulation as well as obesity, abnormal hair growth and other problems. More Information on Polycystic Ovarian Syndrome: Uterine & Ovarian Health
A drug developed in the 1950s as an intravenous anesthetic. Today, it is sold illegally as a recreational drug. It can cause symptoms that mimic schizophrenia, such as delusions, hallucinations, paranoia and disordered thinking. More Information on PCP: Alcohol & Substance Abuse
"PCT" is more commonly referred to as "Prothrombin Time" in the medical community. Prothrombin Time
Also Known As: "Partial Prothrombin Time, APTT, Pro-Time, PPT, PT Time, Partial Thromboplastin Time"
One of several blood tests that measure the time it takes for blood to clot. Results are adjusted with the international normalization ratio (INR), which physicians use to monitor patients on anticoagulant therapy.
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