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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 »
Pulmonary Tuberculosis
Pulmonary tuberculosis or TB is a potentially fatal contagious bacterial infection of the lungs. Learn about pulmonary tuberculosis causes, symptoms, tests and treatment.
See more »Pulmonary Valve Stenosis
Pulmonary valve stenosis is when the outflow of blood from the right ventricle is obstructed. Learn about pulmonary valve stenosis causes, symptoms, treatment and prevention.
See more »Pulmonary Veno-occlusive Disease
Pulmonary Veno-occlusive Disease information from HowStuffWorks. Learn about causes, symptoms and treatments of Pulmonary Veno-occlusive Disease.
See more »Pyloric Stenosis
Pyloric stenosis is a narrowing of the stomach outlet to the small intestine. Learn about pyloric stenosis causes, symptoms, treatment and prevention.
See more »Pyogenic Granuloma
Pyogenic granulomas are small reddish bumps on the skin which bleed easily. Learn about pyogenic granuloma causes, symptoms, treatment and prevention.
See more »Pyogenic Liver Abscess
Pyogenic liver abscess is a collection of pus within the liver. Learn about pyogenic liver abscess causes, symptoms, treatment and prevention.
See more »Pyruvate Kinase Deficiency
Pyruvate kinase deficiency is a pyruvate kinase enzyme deficiency which causes hemolytic anemia. Learn bout pyruvate kinase causes, symptoms, treatment and prevention.
See more »Q Fever
Q fever is a bacterial infection that can cause pneumonia, hepatitis or endocarditis. Learn about Q fever causes, symptoms, treatment and prevention.
See more »Q Fever Early Stage
Q Fever Early Stage information from HowStuffWorks. Learn about causes, symptoms and treatments of Q Fever Early Stage.
See more »Rabies
Rabies, an acute viral infection caused by animal bites, can cause respiratory death. Learn about animal carriers, treatments, and symptoms.
See more »Radial Nerve Dysfunction
Radial nerve dysfunction is impaired tricep, forearm or hand functions due to radial nerve damage. Learn about radial nerve dysfunction causes, symptoms, treatment and prevention.
See more »Radiation Enteritis
Radiation enteritis is an inflammation of the small intestinal lining from radiation exposure. Learn about radiation enteritis causes, symptoms, treatment and prevention.
See more »Ramsay Hunt Syndrome
Ramsay Hunt syndrome is a viral neurological disorder infecting certain facial nerves. Learn about Ramsay Hunt syndrome causes, symptoms, tests, treatment and prevention.
See more »Rapidly Progressive (crescentic) Glomerulonephritis
Rapidly progressive (crescentic) glomerulonephritis is a kidney disease that damages the glomeruli. Learn about crescentric glomerulonephritis causes, symptoms, treatment and prevention.
See more »Rat-bite Fever
Rat-bite Fever information from HowStuffWorks. Learn about causes, symptoms and treatments of Rat-bite Fever.
See more »Raynaud’s Phenomenon
Raynaud's phenomenon is when strong emotions or cold exposure interrupt blood flow. Learn about Raynaud’s phenomenon causes, symptoms, treatment and prevention.
See more »Reactive Attachment Disorder Of Infancy Or Early Childhood
Reactive attachment disorder of infancy or early childhood is a social interaction disturbance. Learn about reactive attachment disorder of infancy or early childhood causes, symptoms, treatment and prevention.
See more »Rectal Prolapse
Rectal prolapse is when the rectal mucosa protrudes down to or through the anal opening. Learn about rectal prolapse causes, symptoms, treatment and prevention.
See more »Recurrent Cystitis
Recurrent cystitis is multiple bladder infections over a period of time. Learn bout recurrent cystitis causes, symptoms, treatment and prevention.
See more »Reflux Nephropathy
Reflux nephropathy is kidney damage from a backflow of urine into the kidneys. Learn about reflux nephropathy causes, symptoms, treatment and prevention.
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