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hemangioendothelioma
hemangioendothelioma[hē¦mān·jē·ō‚en·dō‚thē·lē ′ō·mə] (medicine) A malignant tumor composed of anoplastic endothelial cells. Also known as hemangiosarcoma. hemangioendothelioma
hemangioendothelioma [he-man″je-o-en″do-the″le-o´mah] a rare, well-differentiated endothelial tumor with an appearance between that of a hemangioma and a sarcoma; sometimes considered to be identical to a hemangiosarcoma.he·man·gi·o·en·do·the·li·o·ma (hē-man'jē-ō-en'dō-thē'lē-ō'mă), A neoplasm derived from blood vessels, characterized by numerous prominent endothelial cells that occur singly, in aggregates, and as the lining of congeries of vascular tubes or channels; in the elderly, may be malignant (angiosarcoma or hemangiosarcoma), but in children are benign and probably represent a growing stage of capillary hemangioma. Locally invasive but only rarely metastasize. [hemangio- + endothelium + G. -oma, tumor] he·man·gi·o·en·do·the·li·o·ma (hē-man'jē-ō-en'dō-thē'lē-ō'mă) A neoplasm derived from blood vessels, characterized by numerous prominent endothelial cells that occur singly, in aggregates, and as the lining of congeries of vascular tubes or channels; in the elderly, may be malignant (angiosarcoma or hemangiosarcoma), but in children are benign and probably represent a growing stage of capillary hemangioma.
Synonym(s): haemangioendothelioma. he·man·gi·o·en·do·the·li·o·ma (hē-man'jē-ō-en'dō-thē'lē-ō'mă) A neoplasm derived from blood vessels, characterized by numerous prominent endothelial cells that occur singly, in aggregates, and as the lining of congeries of vascular tubes or channels; in the elderly, may be malignant (angiosarcoma or hemangiosarcoma), but in children are benign.
Synonym(s): haemangioendothelioma. |