Undifferentiated Pleomorphic Sarcoma

**Semantic type:** Neoplastic Process

**Definition:** An undifferentiated soft tissue sarcoma characterized by the presence of a pleomorphic malignant cellular infiltrate. It is also known as malignant fibrous histiocytoma.

**Synonyms:** - FIBROSARCOMA, PLEOMORPHIC, MALIGNANT - Fibroxanthosarcoma - Fibroxanthosarcoma - Histiocytoma, Fibrous, Malignant - MFH - MFH - Malignant Fibrous Histiocytoma - Malignant Fibrous Histiocytoma of Soft Tissue and Bone - Malignant Fibrous Histiocytoma of the Soft Tissue and Bone - Malignant Fibroxanthoma - Malignant Fibroxanthoma - Malignant fibrous histiocytoma - Malignant fibrous histiocytoma - Storiform-Pleomorphic Fibrous Histiocytoma - Storiform-Pleomorphic MFH - Storiform-Pleomorphic Malignant Fibrous Histiocytoma - UPS - Unclassified Pleomorphic Sarcoma - Unclassified Pleomorphic Sarcoma (Formerly "MFH") - Unclassified Pleomorphic Sarcoma (Formerly "Malignant Fibrous Histiocytoma") - Undifferentiated Pleomorphic Soft Tissue Sarcoma - Undifferentiated pleomorphic sarcoma - malignant fibrous cytoma - malignant fibrous histiocytoma