恶性纤维组织细胞瘤临床上并不多见,发生在肾脏的则更为罕见。现将我院收治的1例报告如下。患者　男,17岁。右侧腰部酸胀、全身无力1个月。无尿路刺激症状,无血尿、畏寒发热。专科检查:双肾区无叩击痛,平卧时双肾不能触及,立位及深呼吸时右肾下极达脐表面,表面平滑,无压痛。输 Malignant fibrous histiocytoma is rare in clinical practice, occurs in the kidneys are even more rare. Now in our hospital one case reported as follows. Patient male, 17 years old. Right waist soreness, general weakness 1 month. No urinary tract irritation, no hematuria, chills and fever. Specialist examination: no percussion pain kidney area, when the kidneys can not touch the supine, standing and deep breathing when the right kidney under the umbilical surface, smooth surface, no tenderness. lose