telangiectasia


telangiectasia
Dilation of the previously existing small or terminal vessels of a part. SYN: angiotelectasis, angiotelectasia. [G. telos, end, + angeion, vessel, + ektasis, a stretching out]
- cephalo- oculocutaneous t. an angioma involving the skin of the face, orbit, meninges, and brain. SEE ALSO: Sturge-Weber syndrome.
- essential t. 1. localized capillary dilation of undetermined origin; 2. SYN: angioma serpiginosum.
- hereditary benign t. an autosomal dominant disorder in which the face, upper trunk, and arms develop telangiectasias.
- hereditary hemorrhagic t. [MIM*187300] a disease with onset usually after puberty, marked by multiple small telangiectases and dilated venules that develop slowly on the skin and mucous membranes; the face, lips, tongue, nasopharynx, and intestinal mucosa are frequent sites, and recurrent bleeding may occur; autosomal dominant inheritance, caused by mutation in the gene (ENG) encoding endoglin on chromosome 9q. SYN: Rendu-Osler-Weber syndrome.
- t. lymphatica SYN: lymphangiectasis.
- t. macularis eruptiva perstans a disseminated eruption of telangiectases associated with erythematous and edematous macules.
- primary t. SYN: angioma serpiginosum.
- secondary t. t. related to a known cause of prolonged dermal vascular dilation such as sunlight, varicose veins, and connective tissue diseases; often associated with atrophy of the skin.
- spider t. SYN: spider angioma.
- t. verrucosa SYN: angiokeratoma.

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tel·an·gi·ec·ta·sia .tel-.an-jē-.ek-'tā-zh(ē-)ə, .tēl-, təl- or tel·an·gi·ec·ta·sis -'ek-tə-səs n, pl -ta·sias or -ta·ses -tə-.sēz
1) an abnormal dilation of red, blue, or purple superficial capillaries, arterioles, or venules typically located just below the skin's surface (as on the face) see spider vein
2) HEREDITARY HEMORRHAGIC TELANGIECTASIA
tel·an·gi·ec·tat·ic -.ek-'tat-ik adj

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tel·an·gi·ec·ta·sia (tə-lan″je-ək-taґzhə) [tele- + angi- + ectasia] permanent dilation of preexisting small blood vessels (capillaries, arterioles, venules) to form focal, discolored lesions, usually in the skin or mucous membranes. See also capillary fragility, under fragility. Called also telangiectasis.

Medical dictionary. 2011.

Look at other dictionaries:

  • Telangiectasia — Classification and external resources ICD 10 G11.3, I …   Wikipedia

  • telangiectasia — f. angiol. Ver teleangiectasia. Medical Dictionary. 2011. telangiectasia …   Diccionario médico

  • telangiectasia — (n.) 1831, Modern Latin, from Gk. telos end (see TELE (Cf. tele )), + angeion vessel (see ANGIO (Cf. angio )), + ektasis a stretching out, extension, dilation …   Etymology dictionary

  • telangiectasia — s. f. Dilatação dos vasos orgânicos …   Dicionário da Língua Portuguesa

  • Telangiectasia — Este artículo o sección sobre medicina necesita ser wikificado con un formato acorde a las convenciones de estilo. Por favor, edítalo para que las cumpla. Mientras tanto, no elimines este aviso puesto el 17 de diciembre de 2010. También puedes… …   Wikipedia Español

  • telangiectasia — or telangiectasis noun (plural tasias or telangiectases) Etymology: New Latin, from tel + angi + ectasia, ectasis (as in atelectasis) Date: 1831 an abnormal dilation of red, blue, or purple superficial capillaries, arterioles, or venules… …   New Collegiate Dictionary

  • telangiectasia — tel·an·gi·ec·ta·sia (tĕl ăn jē ĕk tāʹzhə) also tel·an·gi·ec·ta·sis ( ĕkʹtə sĭs) n. Chronic dilation of groups of capillaries causing elevated dark red blotches on the skin.   [New Latin : telo + Greek angeion, vessel; see angio + Greek ektasis,… …   Universalium

  • telangiectasia — noun A medical condition characterized by dark red blotches on the skin caused by chronic dilation of the capillaries …   Wiktionary

  • telangiectasia — ► sustantivo femenino MEDICINA Lesión vascular producida por la dilatación de los vasos capilares …   Enciclopedia Universal

  • telangiectasia — n. dilated dermal capillaries; widening of capillaries …   English contemporary dictionary


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