(an″je-o-en″do-the″le-o´mә) hemangioendothelioma.
Type: Term Pronunciation: an′jē-ō-en-dō-thē-lē-ō′mă Definitions: 1. A benign or malignant neoplasm arising from vascular endothelium.
angioendothelioma Now known as hemangioendothelioma or a true neoplasm of vascular origin, characterized by proliferation of endothelial cells in and about the vascular lumen; it is usually considered to be intermediate in grade between hemangioma and hemangiosarcoma.