hemangioendothelioblastoma

Hemangioendothelioma in which the endothelial cells seem to be especially immature forms. [hemangio- + endothelium + G. blastos, germ, + -oma, tumor]

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he·man·gio·en·do·the·lio·blas·to·ma (he-man″je-o-en″do-the″le-o-blas-toґmə) [hemangioendothelioma + blastoma] a hemangioendothelioma with embryonic elements of mesenchymal origin.