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Common Symptoms:
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Diseases and Medical Conditions P-R provides down-to-earth, comprehensive definitions of hundreds of ailments and illnesses beginning with the letters P-R. Each listing identifies causes, incidence and risk factors, notes symptoms, outlines tests and discusses treatments and support groups where applicable.
Featured Article: Psoriatic Arthritis
Psoriatic arthritis is an arthritis often associated with skin psoriasis. Learn about psoriatic arthritis causes, symptoms, treatment and prevention. See more »
Pierre Robin Syndrome
Pierre Robin syndrome is a congenital condition marked by a small lower jaw. Learn about Pierre Robin syndrome causes, symptoms, treatment and prevention.
See more »Pinguecula
Pinguecula is a nonmalignant growth of the mucous membrane lining the eye. Learn about pinguecula causes, symptoms, treatment and prevention.
See more »Pinworms
Enterobiasis or pinworms are contagious small worms that infect the intestines and are easily treated. Learn about pinworm causes, symptoms, tests, treatment and prevention.
See more »Pituitary Infarction
Pituitary infarction is the tissue death of part of the pituitary gland. Learn about pituitary infarction causes, symptoms, treatment and prevention.
See more »Pituitary Tumor
Pituitary tumor is a noncancerous benign tumor in the pituitary gland and disrupts hormone secretion. Learn about pituitary tumor effects, symptoms, tests and treatment.
See more »Pityriasis Alba
Pityriasis alba is a skin disorder causing round or oval, colorless, finely-scaled patches of skin. Learn about pityriasis alba causes, symptoms, treatment and prevention.
See more »Pityriasis Rosea
Pityriasis rosea is a skin disorder that causes a characteristic rash. Learn about pityriasis rosea causes, symptoms, treatment and prevention.
See more »Pityriasis Rubra Pilaris
Pityriasis rubra pilaris is a skin disorder causing constant skin inflammation and exfoliation. Learn about pityriasis rubra pilaris causes, symptoms, treatment and prevention.
See more »Placenta Abruptio
Abruptio placentae is a condition causing premature separation of the placenta from the uterine site before fetus delivery. Learn about abruptio placentae causes, symptoms, risk factors, and treatments.
See more »Placenta Previa
Placenta previa is when the placenta implants in the cervix partly or completey covering the birth canal. Learn about placenta previa causes, symptoms, treatment and prevention.
See more »Placental Insufficiency
Placental insufficiency is an abnormal pregnancy condition impairing placental functions. Learn about placental insufficiency causes, symptoms, treatment and prevention.
See more »Plague
Plague is a severe and deadly infection that exists in 3 common forms: Bubonic, Pneumonic and Septicemic. Learn about plague symptoms, tests and treatment.
See more »Plantar Fasciitis
Plantar fasciitis is inflammation of the thick skin on the bottom of the foot. Learn about plantar fasciitis causes, symptoms, treatment and prevention.
See more »Pleural Effusion
Pleural effusion is a fluid accumulation between the layers of the membrane lining the lungs and chest. Learn about pleural effusion causes, symptoms, treatment and prevention.
See more »Pleurisy
Pleurisy is inflammation of the lining of the lungs causing pain when breathing or coughing. Learn about pleurisy causes, symptoms, treatment and prevention.
See more »Plummer-Vinson Syndrome/esophageal Web
Plummer-Vinson Syndrome/esophageal Web information from HowStuffWorks. Learn about causes, symptoms and treatments of Plummer-Vinson Syndrome/esophageal Web.
See more »Pneumocystis Carinii Pneumonia
Pneumocystis carinii pneumonia is an infection of the lungs by the fungus Pneumocystis jiroveci. Learn about pneumocystis carinii pneumonia causes, symptoms, treatment and prevention.
See more »Pneumomediastinum
Pneumomediastinum is a condition in which there is air in mediastinum. Learn about pneumomediastinum causes, symptoms, treatment and prevention.
See more »Pneumonia
Pneumonia is an infection causing lung inflammation whose severity ranges from mild to severe to fatal. Learn about pneumonia causes, symptoms, tests and treatments.
See more »Pneumonia In Immunocompromised Host
Pneumonia in immunocompromised host is pneumonia in someone with an impaired immune response. Learn about pneumonia in immunocompromised host causes, symptoms, treatment and prevention.
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