原发性肺平滑肌肉瘤在肺部恶性肿瘤中甚为罕见，本院自１９９２年８月至１９９６年１０月共收治３例，现报道如下：一般资料：３例均为男性，年龄４７～６３岁，平均５４岁，病程２～６个月。病变位于左上肺２例，位于右上肺１例，临床症状有低热、胸痛、咳嗽、咳痰，１例... Primary pulmonary leiomyosarcoma is rare in lung cancer. It has been treated in our hospital from August 1992 to October 1996. It is reported as follows: General information: 3 cases are male, ages 47-63 Years old, average 54 years old, duration of 2 to 6 months. The lesion was located in the left upper lung in 2 cases, in the right upper lung in 1 case, the clinical symptoms of fever, chest pain, cough, sputum, 1 case...