肺原发恶性纤维组织细胞瘤(MFH)罕见,1979年Bedrossion首次报告,国内刘景坤1983年报道此病,迄今共60例。本文报告1例。患者女性,48岁。主因干咳、乏力、低热、右上胸隐痛1个月,于1987年5月17日门诊就诊。胸片示右上肺圆形阴影约3×3cm,密度均匀,边缘光滑,无分叶。1年前曾有“右上肺结核”史。门诊诊断“右上肺结核球”。给予链霉素、雷米封抗结核治疗共3周。复摄胸片右上肺圆形阴影增大。入院检查,T37.2℃,表浅淋巴结无增大。心肺无异常。血红蛋白92g/L,白细 The primary malignant fibrous histiocytoma of the lung (MFH) is rare. It was reported for the first time by Bedrossion in 1979. The disease was reported in 1983 by Liu Jingkun in China. So far, there have been 60 cases. This article reports 1 case. Female patient, 48 years old. Mainly due to dry cough, fatigue, fever, chest pain for 1 month, on May 17, 1987 outpatient clinic. The chest radiograph showed a round shadow of about 3 × 3 cm in the upper right lung, with uniform density, smooth edges, and no lobulation. There was a history of “upper right pulmonary tuberculosis” 1 year ago. Outpatient diagnosis “right upper lung tuberculosis”. Administration of streptomycin and Rimmy capsulated antituberculosis for a total of 3 weeks. Resurfacing the upper right lung of the chest X-ray has an increased circular shadow. Admission examination, T37.2 °C, no increase in superficial lymph nodes. No abnormalities in heart and lungs. Hemoglobin 92g/L, white fine