骨原发性恶性纤维组织细胞瘤（Malignantfi－boushistiocvtoma，MFH），又称恶纤维黄色瘤，纤维黄色肉瘤。主要是组织细胞和成纤维细胞组成的高度恶性肿瘤，较少见。1972年Feldman和Norman首先报道9例，以后陆续又有报道。发病率据刘子君［1］统计为1．3％。我院骨科1987年～19 Primary malignant fibrous histiocytoma of bone (Malignantfi-boushistiocvtoma, MFH), also known as malignant fiber xanthoma, fibrosarcoma. Highly malignant tumors composed of tissue cells and fibroblasts are rare. In 1972, Feldman and Norman first reported 9 cases, and they were later reported. The incidence rate according to Liu Zijun [1] was 1.3%. Orthopedics in our hospital 1987～19