Pulmonary benign metastasizing leiomyoma (PBML) is a rare and often to be misdiagnosed disease. In this study, we want to investigate the diseased of the clinicopathological characteristics, diagnosis, treatment and prognosis. The retrospective analysis were performed on the clinicopathological data of 5 patients with PBML. All 5 cases were female, mean age 46.8 years old, and were found with single nodule. One case was found with left kidney metastasis. Surgical procedures includes: VATS biopsy (3 cases), resection of superior lobe of left lung (1 case), resection of superior lobe of right lung and wedge resection of middle and inferior lobe of right lung (1 case). The residual nodules in lung were stable in all cases with followup 3-48 mo. PBML is dominated occurring in females with history of uterine leiomyoma, preferential to metastasize to lung, and surgery is the primary therapy. Since it is hormone dependent, hormonal therapy may be suggested in these patients.
肺良性转移性平滑肌瘤（pulmonary benign metastasizing leiomyoma, PBML）是一种罕见疾病，临床工作中易被误诊。本文拟探讨PBML的临床病理学特征、诊断、治疗及预后。回顾性分析5例PBML患者的临床资料和病理学特点。患者均为女性，平均年龄46.8岁。肺转移瘤发生在诊断子宫平滑肌瘤后89个月-226个月。4例为肺内多发性结节，1例为单发性，1例伴左肾转移。手术方式包括3例胸腔镜下楔形切除，1例左肺上叶切除，1例右肺上叶切除+右肺中叶、下叶楔形切除。术后随访3个月-48个月，肺内残余病灶无进展。PBML主要发生于有子宫平滑肌瘤病史的女性。肺是最主要的转移部位。手术切除是主要的治疗手段。肿瘤激素依赖性，可予内分泌治疗。