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Pinta
Pinta is a contagious bacterial skin infection caused by Treponema carateum. It mainly affects the skin, causing patches that can change in…
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Pituitary Adenoma
A pituitary adenoma is a usually noncancerous growth that develops from cells in the pituitary gland, a small gland at the base…
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Pityriasis Versicolor
Pityriasis versicolor, also called tinea versicolor, is a common superficial skin condition caused by an overgrowth of Malassezia yeast. This yeast normally…
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Plague
Plague is an infection caused by the bacterium Yersinia pestis. It can occur in bubonic, pneumonic, or septicemic forms, depending on which…
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Plantar Fasciitis
Plantar fasciitis is irritation or degeneration of the plantar fascia, a strong band of tissue that supports the sole of the foot.…
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Plantar Warts
Plantar warts are noncancerous growths caused by human papillomavirus (HPV). They usually develop on the sole of the foot, especially on the…
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Pleomorphic Adenoma
Pleomorphic adenoma is a usually benign tumor that develops in a salivary gland. It most often affects the parotid gland, which sits…
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Pleural Effusion
Pleural effusion is an abnormal buildup of fluid between the lung and chest wall, in an area called the pleural space. This…
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Pneumococcal Pneumonia
Pneumococcal pneumonia is a bacterial lung infection caused by Streptococcus pneumoniae, also called pneumococcus. The infection can fill or inflame the air…
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Pneumonia
Pneumonia is an infection or inflammation of the tiny air sacs in one or both lungs. The air sacs may fill with…
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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…
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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…
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Polycythemia Vera
Polycythemia Vera is a rare, chronic blood cancer in which the bone marrow makes too many red blood cells. It may also…
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Polymyalgia Rheumatica
Polymyalgia rheumatica is an inflammatory condition that causes pain and stiffness around the shoulders, hips, and neck. It mainly affects adults over…
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Polyneuropathy
Polyneuropathy is a condition in which multiple peripheral nerves are damaged or do not work properly. These nerves carry signals between the…
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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,…
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Post-Traumatic Stress Disorder
Post-traumatic stress disorder (PTSD) is a mental health condition that can develop after experiencing or witnessing a traumatic event. This posttraumatic stress…
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Prediabetes
Prediabetes means your blood glucose, or blood sugar, is higher than usual but not yet in the range used to diagnose diabetes.…
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Preeclampsia
Preeclampsia is a pregnancy-related high blood pressure disorder that can affect the pregnant person's organs and the placenta. It most often begins…
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Presbycusis
Presbycusis is age-related hearing loss caused by gradual changes in the inner ear and hearing pathways. It usually develops slowly as a…
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Pressure Ulcer
A pressure ulcer is damage to the skin and the tissue underneath it caused by prolonged pressure, friction, or shearing forces. It…
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Primary Immunodeficiencies Due To Disorders Of Adaptive Immunity
Primary immunodeficiencies due to disorders of adaptive immunity are usually inherited conditions in which T cells, B cells, antibodies, or related immune…
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Primary Immunodeficiency
Primary Immunodeficiency is a group of conditions in which part of the immune system is missing or does not work properly. This…
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Prinzmetal Angina
Prinzmetal angina, also called variant angina or vasospastic angina, happens when a coronary artery suddenly tightens for a short time. This temporary…
