endothelioma

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endothelioma

[‚en·dō‚thē·lē′ō·mə]
(medicine)
Any tumor arising from, or resembling, endothelium; usually a benign growth, but occasionally a malignant tumor.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.