Localized Extraskeletal Osteosarcoma

**Semantic type:** Neoplastic Process

**Definition:** An osteosarcoma that arises from the soft tissue and is confined to a specific site without evidence of spread to other anatomic sites.

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