Benign Metastasizing Leiomyomas of the Lungs: A Case Report

Abstract

Background: Benign metastasizing leiomyoma (BML) is a very rare condition, which is paradoxically called benign metastases and occurs among patients with previous history of leiomyomas. Case presentation: We report a case of a 46-year-old woman diagnosed with benign metastasizing leiomyomas of the lungs, 16 years after uterine leiomyoma removal. The patient presented with the exertion dyspnea and dry cough lasting for several weeks. CT scan was indicative of metastatic lesions in the lung and no pathological findings within the lesser pelvis and abdominal cavity. The patient underwent right video thoracoscopy followed by thoracotomy with wedge and marginal resections of the right lung tissue containing tumors. The histopathological diagnosis was: benign metastasizing leiomyomas. The patient received a single dose of Triptorelinum (Diphereline SR 3.75)-GnRH analog. Control CT performed 4, 12, 36 months later showed stabilization. The patient has been symptom-free for 5 years. 1. BML is very rare disease-no more than 100 cases have been described. Our treatment methods include: surgical resection, hormonal manipulation and observation. 2. An individual treatment strategy or observation should be consider for each patient with BML