Abstract
A benign metastasizing pulmonary leiomyomatosis(BMPL) is a rare and uncommon variety of leiomyoma. BML affects middle-aged women who had a previous hysterectomy due to a histologically benign appearing leiomyoma. BMPL is characterized by asymptomatic multiple smooth muscle nodules with a less aggressive course than a leiomyosarcoma. A 45-year-old woman who had a hysterectomy for a uterine leiomyoma 4 years prior to this study presented with multiple variable-sized lung nodule. A percutaneous needle biopsy confirmed the benign metastasizing pulmonary leiomyomatosis. Here, we present this case with a review of the relevant literatures.