Bone Angiosarcoma

**Semantic type:** Neoplastic Process

**Definition:** A high-grade malignant vascular neoplasm that arises from the bone. It is characterized by the presence of neoplastic cells with endothelial differentiation.

**Synonyms:** - Bone Angioendothelial Sarcoma - Bone Hemangioendothelial Sarcoma - Bone Hemangiosarcoma - Osseous Angioendothelial Sarcoma - Osseous Angiosarcoma - Osseous Hemangiosarcoma