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Peritoneal Dialysis
Peritoneal dialysis is a form of kidney dialysis that uses the lining of the abdomen, called the peritoneum, as a natural filter.…
Peritonitis
Peritonitis is inflammation of the peritoneum, the thin lining that surrounds many organs inside the abdomen. Infection, leakage of substances such as…
Persistent Cough
A persistent cough is a cough that continues beyond the expected course of a short-lived illness. Coughing is a protective reflex that…
Pharyngitis
Pharyngitis is inflammation of the throat, also called the pharynx. Viruses cause most cases, but bacteria can also cause it, including group…
Physical Medicine & Rehabilitation
Non-surgical treatment focused on restoring function after injury, surgery, or a chronic condition.
Pigmented Villonodular Synovitis
Pigmented villonodular synovitis is a usually noncancerous growth of the synovium, the thin lining inside a joint. The lining becomes thickened and…
Pinta
Pinta is a contagious bacterial skin infection caused by Treponema carateum. It mainly affects the skin, causing patches that can change in…
Pituitary Adenoma
A pituitary adenoma is a usually noncancerous growth that develops from cells in the pituitary gland, a small gland at the base…
Pityriasis Versicolor
Pityriasis versicolor, also called tinea versicolor, is a common superficial skin condition caused by an overgrowth of Malassezia yeast. This yeast normally…
Plague
Plague is an infection caused by the bacterium Yersinia pestis. It can occur in bubonic, pneumonic, or septicemic forms, depending on which…
Plantar Fasciitis
Plantar fasciitis is irritation or degeneration of the plantar fascia, a strong band of tissue that supports the sole of the foot.…
Plantar Warts
Plantar warts are noncancerous growths caused by human papillomavirus (HPV). They usually develop on the sole of the foot, especially on the…
Platelet Blood Test
Platelets are small blood components that help form clots when a blood vessel is injured. A platelet blood test measures the number…
Platelet Transfusion
A platelet transfusion is the transfer of donated platelets through an intravenous (IV) line to prevent or treat bleeding. It may be…
Pleomorphic Adenoma
Pleomorphic adenoma is a usually benign tumor that develops in a salivary gland. It most often affects the parotid gland, which sits…
Pleural Effusion
Pleural effusion is an abnormal buildup of fluid between the lung and chest wall, in an area called the pleural space. This…
Pneumococcal Pneumonia
Pneumococcal pneumonia is a bacterial lung infection caused by Streptococcus pneumoniae, also called pneumococcus. The infection can fill or inflame the air…
Pneumonia
Pneumonia is an infection or inflammation of the tiny air sacs in one or both lungs. The air sacs may fill with…
Polycystic Kidney Disease
Polycystic kidney disease (PKD) is an inherited condition in which multiple fluid-filled cysts develop in the kidneys. The cysts can enlarge the…
Polycystic Ovary Syndrome
Polycystic ovary syndrome (PCOS) is a common hormonal and metabolic condition that can affect how the ovaries work. It may cause changes…
Polycythemia Vera
Polycythemia Vera is a rare, chronic blood cancer in which the bone marrow makes too many red blood cells. It may also…
Polymyalgia Rheumatica
Polymyalgia rheumatica is an inflammatory condition that causes pain and stiffness around the shoulders, hips, and neck. It mainly affects adults over…
Polyneuropathy
Polyneuropathy is a condition in which multiple peripheral nerves are damaged or do not work properly. These nerves carry signals between the…
Polyps Of Small Intestine
Polyps of small intestine are abnormal growths that arise from the lining of the small intestine. A polyp may be benign, precancerous,…
