Recurrent Adult Undifferentiated High Grade Pleomorphic Sarcoma of Bone

**Semantic type:** Neoplastic Process

**Definition:** The reemergence of undifferentiated high-grade pleomorphic sarcoma of bone in adulthood after a period of remission.

**Synonyms:** - Recurrent Adult Undifferentiated High Grade Pleomorphic Sarcoma - Recurrent Adult Undifferentiated High-Grade Pleomorphic Sarcoma of Bone - Recurrent Undifferentiated High Grade Pleomorphic Sarcoma of Bone