ABSTRACT
Objective To investigate the diagnosis and treatment of malignant fibrous histiocytoma (MFH) in abdominal cavity. Methods The clinical manifestations, imaging examination, pathology, methodology, effect of treatment and prognosis of 28 MFH patients were retrospectively analyzed. Results Tumors were in the retroperitoneal space in 17 cases, within abdominal cavity in 6, in mesentery in 3 cases, and in the abdominal wall in 2 cases. The clinical symptoms were body weight loss, abdominal pain and mass. B ultrasonography and CT scanning showed mass in the abdomen. 24 cases were with multiplefoci,4 cases were with a single mass. Seventeen cases underwent complete tumor resection,11 cases with partial resection, 16 cases received postoperative chemotherapy and 14 cases with postoperative radiotherapy. The overall survival rate of 1-, 3- and 5- year was 76.9%,26.9% and 3.9%,respectively. Conclusion MFH is most often located in retroperitoneal space, surgical resection was the treatment of choice. The prognosis in patients with MFH might be improved by complete resection combined with chemotherapy or/ and radiotherapy.