Extraskeletal Cartilaginous and Osseous Neoplasm

**Semantic type:** Neoplastic Process

**Definition:** A benign or malignant mesenchymal neoplasm with cartilaginous or osseous differentiation arising from the soft tissues exclusively. Representative examples include chondroma, osteoma, and osteosarcoma.

**Synonyms:** - Extraskeletal Cartilaginous and Osseous Tumor