spider angioma

spi·der an·gi·o·ma

a telangiectatic arteriole in the skin with radiating capillary branches simulating the legs of a spider; characteristic, but not pathognomonic, of parenchymatous liver disease; also seen in pregnancy, often disappearing after delivery, and at times in healthy people.

Synonym(s): arterial spider, nevus araneus, spider hemangioma, spider nevus, spider telangiectasia, vascular spider

A superficial spider-like cluster of capillaries composed of a central ‘feeder’ vessel and multiple minute tortuous and dilated radiating vessels with a peripheral erythaema; when the involved vessel is large, it may pulsate and blanch on pressure; while classically due to increased circulating oestrogens as seen in pregnancy and alcoholic cirrhosis, SAs may occur in chronic hepatic congestion 2º to constrictive pericarditis and may be a normal birthmark in children

spider angioma

Dermatology A superficial spider-like cluster of capillaries composed of a central 'feeder' vessel and multiple minute tortuous and dilated radiating vessels with a peripheral erythema; while classically due to ↑ circulating estrogens–eg, in pregnancy and alcoholic cirrhosis, SAs may occur in chronic hepatic congestion 2º to constrictive pericarditis and may be a normal birthmark in children. See White spider.

spi·der an·gi·o·ma

(spī'dĕr an'jē-ō'mă)

A telangiectatic arteriole in the skin with radiating capillary branches simulating the legs of a spider; characteristic, but not pathognomonic, of parenchymatous liver disease; also seen in pregnancy, often disappearing after delivery, and at times in otherwise healthy people.
Synonym(s): arterial spider, spider nevus, spider telangiectasia, spider (2) , vascular spider.