Syndrome, Osler-Rendu-Weber
Known as hereditary hemorrhagic telangectasia (HHT), this is a genetic vascular disease with dilatation (widening) of capillaries and small arteries (arterioles) producing characteristic small red spots (called telangectases) in the skin and mucous membranes, particularly in the nose and gastrointestinal tract. These spots are fragile and bleed easily. Recurrent nosebleeds and chronic gastrointestinal bleeding are the usual major problems. Other organs may have the spots and bleed. HHT is an autosomal dominant disorder, meaning that the HHT gene is on a nonsex (autosomal) chromosome (in chromosome 9q34.1) and one copy of this gene is enough to cause the disease. HHT is also known as Rendu-Osler-Weber disease or syndrome.

Medical dictionary. 2011.

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  • Osler-Rendu-Weber syndrome — Known as hereditary hemorrhagic telangectasia (HHT), this is a genetic vascular disease with dilatation (widening) of capillaries and small arteries (arterioles) producing characteristic small red spots (called telangectases) in the skin and… …   Medical dictionary

  • Disease, Osler-Rendu-Weber — Known as hereditary hemorrhagic telangectasia (HHT), this is a genetic vascular disease with dilatation (widening) of capillaries and small arteries (arterioles) producing characteristic small red spots (called telangectases) in the skin and… …   Medical dictionary

  • Syndrome, Rendu-Osler-Weber — Known as hereditary hemorrhagic telangectasia (HHT), this is a genetic vascular disease with dilatation (widening) of capillaries and small arteries (arterioles) producing characteristic small red spots (called telangectases) in the skin and… …   Medical dictionary

  • Rendu-Osler-Weber syndrome — Ren·du Os·ler Web·er syndrome (ron duґ ōsґlər vaґbər) [Henri Jules Louis Marie Rendu, French physician, 1844–1902; Sir William Osler, Canadian physician, 1849–1919; Frederick Parkes Weber, British physician, 1863–1962]… …   Medical dictionary

  • Weber — Rainer, 20th century U.S. pathologist. See W. stain. Ernst Heinrich, German physiologist and anatomist, 1795–1878. See W. glands, under gland, W. law, W. paradox, W. test for hearing, Fechner W. law, W. Fechner law. Frederick Parkes, English… …   Medical dictionary

  • syndrome — The aggregate of symptoms and signs associated with any morbid process, and constituting together the picture of the disease. SEE ALSO: disease. [G. s., a running together, tumultuous concourse; (in med.) a concurrence of symptoms, fr. syn,… …   Medical dictionary

  • Osler — Sir William, Canadian physician in U.S. and England, 1849–1919. See O. disease, O. node, O. sign, Rendu O. Weber syndrome. * * * objectively structured long examination record …   Medical dictionary

  • Rendu — Henri J.L.M., French physician, 1844–1902. See R. Osler Weber syndrome …   Medical dictionary

  • Rendu-Osler-Weber syndrome — hereditary hemorrhagic telangiectasia …   Medical dictionary

  • Frederick Parkes Weber — (1863 1962) was an English dermatologist who practiced medicine in London. His father, Sir Hermann David Weber (1823 1918) was a personal physician to Queen Victoria.Weber contributed over 1200 medical articles and wrote 23 books over a period of …   Wikipedia

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