原发于肺的平滑肌肉瘤罕见，此病的ＣＴ诊断文献报道不多。作者总结我院经手术病理证实３例原发性肺平滑肌肉瘤的ＣＴ表现并结合文献作一报告。１临床资料例１男性，５８岁，咳嗽１月伴发热入院，既往吸烟史２０年，２０支／ｄ。ＣＴ检查示右下肺叶后基底段大小约５．０ｃ... Leiomyosarcoma of primary origin is rare in the lung, and CT diagnosis of this disease is not reported in the literature. The authors summarized the CT findings of 3 cases of primary pulmonary leiomyosarcoma confirmed by pathology in our hospital and combined the literature for a report. 1 Clinical data Example 1 Male, 58 years old, coughing 1 month with fever admission, previous smoking history 20 years, 20/d. CT examination showed that the posterior basal segment of the right lower lobe was about 5.0 c...