Hemangioendothelioma:
Chapter: 10
A vascular tumor composed of endothelial cells, considered to be intermediate between benign hemangiomas and frankly malignant angiosarcomas. Histologically, several variants are described, based on the predominant cell type - spindle cell, epithelioid etc. In general, surgical excision is curative; rarely do these tumors metastasize.
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