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hemangioendothelioma

Pronunciation: he-man'je-o-en'do-the'le-o'ma

Definition: 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]

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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