Kaposi's Sarcoma
Kaposi's sarcoma (KS) is a disease in which cancer cells are found in the tissues under the skin or mucous membranes that line the mouth, nose, and anus. KS causes red or purple patches (lesions) on the skin and/or mucous membranes and spreads to ... [... more]
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Definition of Kava Kava
Kava-Kava is also known as piper methysticum. It is a Polynesian herb root, and the parts used for medicinal purposes are the dried rhizome and roots. Chemicals contained in the herb are demethoxyyangonin, dihydrokawin, dihydromethysticin, ... [... more]
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Keratoconus
This is a conical protrusion of the central part of the cornea, resulting in an irregular astigmatism. "Kerato" is the word for cornea. Keratoconus is a progressive ectasia (expansion or dilatation) of the cornea, usually bilateral, beginning .. [... more]
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Kidney Dialysis
Dialysis is a procedure that replaces some of the kidney's normal functions and is performed when a person's own kidneys can no longer function adequately to maintain life. In the U.S. today more than 100,000 individuals undergo dialysis ... [... more]
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Kidney Diseases
Kidney diseases are disorders that affect the kidneys; the two organs that remove waste products, produce certain hormones, and regulate the level of chemicals in blood. A major function of the kidneys is to remove waste products and excess fluid ... [... more]
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Kidney Infection
Acute glomerulonephritis is an inflammatory disease involving the renal glomeruli of both kidneys. It is thought to involve antigen-antibody reaction which produces damage to the glomerular capillaries. Chronic glomerulonephritis is a slowly ... [... more]
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Definition of Kidney Stones
A kidney stone is the result of a chemical reaction that occurs when the urine becomes concentrated and when certain substances combine together to create an object that is too large to pass in the urine. Calcium oxalate, calcium and ammonium ... [... more]
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Kidney Transplantation
Symptoms, Treatment and Prevention of Kidney Transplantation Article updated and reviewed by Nader Najafian, MD, Assistant Professor of Medicine, Harvard Medical School and Associate Physician, Renal Division--Brigham & Women's Hospital on May ... [... more]
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Knee Injury
An injury to either or both knees causing pain and/or disability. The legs, especially the knees, are the most injury-prone parts of the body. Knee injuries are the leading cause of long-term disability among athletes. Although most commonly due ... [... more]
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Knee Replacement
Total knee replacement is a surgical procedure in which injured or damaged parts of the knee joint are replaced with artificial parts, called prostheses. The knee is the largest joint in the body. It is commonly known as the "hinge" joint, ... [... more]
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Knee Sprains
By definition, a knee sprain is an injury to a knee ligament. The sprain may vary in severity from a slight stretch to a complete tear of the ligament. A mild, or grade 1, sprain simply stretches the ligament and causes pain and swelling. A ... [... more]
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Knee X-ray
X-rays of the knee may be helpful in management of knee injuries. X-rays are a form of invisible electromagnetic energy of short wavelength that is produced when high-speed electrons strike a heavy metal. X-rays can be used to produce images of ... [... more]
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