hereditary hemorrhagic telangiectasia

Medical Dictionary

hereditary hemorrhagic telangiectasia n.
An inherited disease, usually beginning after puberty, characterized by multiple telangiectases and by fragile capillaries that break easily and bleed into the skin and mucous membranes. Also called Osler's disease, Rendu-Osler-Weber disease, Rendu-Osler-Weber syndrome.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Britannica
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hereditary hemorrhagic telangiectasia

hereditary disorder characterized by bleeding from local capillary malformations. In Osler-Rendu-Weber disease, capillaries in the fingertips and around the oral and nasal cavities are enlarged and have unusually thin walls; they are easily broken by accidental bumping or jarring, resulting in the release of blood into the tissues or externally. Blood clotting is normal, but frequent bleeding from the nose and elsewhere can cause severe anemia. Frequent nosebleeds may be treated with cauterization or laser; bleeding in vital areas requires surgery

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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