Malignant fibrous histiocytoma (MFH) is the most common soft tissue sarcoma of adulthood with a male preponderance, and it often involves the extremities and retroperitoneum.

• 摘要恶性纤维组织细胞瘤是成年人最常见的恶性软组织肉瘤，以男性居多，好发于四肢及后腹腔。