皮肤平滑肌肉瘤少见，现报道一例老年男性的复发性平滑肌肉瘤及其组织学和免疫组化的表现。患者男，６３岁。因左大腿反复肿块６年，明显增大８个月，于１９９４年１０月来我院就诊。１９８８年在左大腿部发现一个黄豆大小结节，表面正常，无自觉症状，偶有触痛。２年后结... Leiomyosarcoma of the skin is rare, and a case of recurrent leiomyosarcoma in elderly men has been reported and histological and immunohistochemical features have been reported. Male patient, 63 years old. Due to the repeated recurrence of the left thigh for 6 years, it was significantly increased by 8 months. He came to our hospital in October 1994. In 1988, a soy-sized nodule was found in the left thigh, with normal surface, no symptoms, and occasional tenderness. 2 years later...