angioma

(an-je-o’mah), pl. angio’mat a (Gr. ἀγγεῖον ve el + -wya tumor]. A tumor the cells of which tend to form blood-ve els (hemangioma) or lymph ve els (lymph angioma); a tumor made up of new-formed blood-ve els or lymph-ve els. &. caver no’sum, cavernous 8., an erectile tumor; a tumor made up of a connective-ti ue framework inclosing large spaces filled with blood: sometimes called ercctile tumor. ὃ. cUu’- tis, a kind of nevus made up of a network of dilated blood-ve els. hypertrophic a., an angioma containing solid matter formed by hyperplasia of the endothelium. infective a. Same as a. ser ping i no sum. plexiform a., ordinary angioma made up of dilated and tortuous capillaries usually located in the skin. o’sum, Same as a. serpigin a skin disease characterized by minute vascular points, looking like grains of cayenne pepper, arranged in rings on the skin. simple a., a nevus or telangiectasis: a tumor composed of a network of small ve els or of distended capillaries bound together by connective ti ue. ὅθ. ectatic a., one made up of dilated blood-ve els. 8. veno’- sum racemo’sum, the swellings caused by severe varicosity of superficial veins.