hemangioendothelioma /he·man·gio·en·do·the·lio·ma/ (-en″do-the″le-o´mah)
hemangioendothelioma
hemangioendothelioma [he-man″je-o-en″do-the″le-o´mah]
hemangioendothelioma (hē-man´jēōen´dōthē´lēō´m
),
1. a true neoplasm of vascular origin, with proliferation of endothelial cells around the vascular lumen.
2. hemangiosarcoma.
he·man·gi·o·en·do·the·li·o·ma (h -m n j - - nd-thl- m )n. A neoplasm derived from blood vessels, characterized by numerous prominent endothelial cells that occur singly or in aggregates and line vascular tubes or channels. |
hemangioendothelioma
[hēman′jē·ō·en′dōthē′lē·ō′mə] pl. hemangioendotheliomas, hemangioendotheliomata
Etymology: Gk, haima + endon, inside, thele, nipple, oma, tumor
1 also called angioendothelioma. a tumor, consisting of endothelial cells, that grows around an artery or a vein. The benign form occurs in children and is usually cured by local excision. The tumor rarely becomes malignant.
2 malignant hemangioendothelioma. See also angiosarcoma.
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.
hemangioendothelioma (hē-man´jēōen´dōthē´lēō´m
),n a malignant tumor formed by proliferation of endothelium of the capillary vessels.
hemangioendothelioma
a hemangioma in which endothelial cells are the predominant component.
malignant hemangioendothelioma
see hemangiosarcoma.
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