Metastatic Extraskeletal Osteosarcoma

**Semantic type:** Neoplastic Process

**Definition:** A soft tissue osteosarcoma that has spread to another anatomical site.

**Synonyms:** - Extraskeletal Osteosarcoma, Metastatic - Metastatic Extraosseous Osteosarcoma - Metastatic Extraskeletal Osteogenic Sarcoma