Breast Extraskeletal Osteosarcoma

**Semantic type:** Neoplastic Process

**Definition:** An osteosarcoma arising from the breast tissue.

**Synonyms:** - Breast Osteosarcoma - Osteogenic Breast Sarcoma - Osteogenic Sarcoma of Breast - Osteogenic Sarcoma of the Breast - Osteosarcoma of Breast - Osteosarcoma of the Breast