hemangioendothelioma

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hemangioendothelioma

[hē¦mān·jē·ō‚en·dō‚thē·lē ′ō·mə]
(medicine)
A malignant tumor composed of anoplastic endothelial cells. Also known as hemangiosarcoma.
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The differential diagnosis of intravascular KS includes intravascular papillary endothelial hyperplasia, intravenous PG, intravascular fasciitis, papillary intralymphatic angioendothelioma (Dabska tumor), and intravascular myopericytoma.
Clinically, IPEH can be misdiagnosed as a mucocele, hemangioma, pyogenic granuloma, Kaposi sarcoma, angiosarcoma, Kimura disease, intravenous atypical vascular proliferation, endovascular papillary angioendothelioma, papular angioplasia, or bacillary angiomatosis.
Valentis initiated a Phase IIa clinical trial with Interferon-a (IFN-a) gene medicine for the treatment of malignant angioendothelioma, a rare form of vascular tumor.
Malignant endovascular papillary angioendothelioma of the skin in childhood: clinicopathologic study of 6 cases.