Objective Pulmonary benign metastasizing leiomyoma(PBML)is a rare entity that leiomyoma of uterus metastasized to the lung.The clinical characteristics of this rare disease were analyzed in this article.Methods The detailed clinical records of 7 patients diagnosed as PBML at Peking Union Medical College Hospital between January 2001 and June 2015 were reviewed.Results All pa- Objective Pulmonary benign metastasizing leiomyoma (PBML) is a rare entity that leiomyoma of uterus metastasized to the lung.The clinical characteristics of this rare disease were analyzed in this article. Methods The detailed clinical records of 7 patients diagnosed as PBML at Peking Union Medical College Hospital between January 2001 and June 2015 were reviewed. Results All pa-