Epithelioid Hemangioendothelioma

**Semantic type:** Neoplastic Process

**Definition:** A low-grade malignant blood vessel neoplasm characterized by the presence of epithelioid endothelial cells. The neoplastic cells are arranged in cords and nests that are embedded in a myxoid to hyalinized stroma.

**Synonyms:** - Epithelioid Angioendothelioma - Epithelioid Angiosarcoma - Epithelioid hemangioendothelioma, NOS - Epithelioid hemangioendothelioma, malignant