title: Benign metastasizing leiomyoma of the lung with spontaneous pneumothorax.
abstract: A 47-year-old woman was admitted with recurrent pneumothorax. Preoperative chest computed tomography (CT) showed multiple lung nodules and cysts bilaterally. She had undergone enucleatic myomectomy 12 years earlier. Video-associated thoracoscopic biopsy was performed. Histopathologically, there were bulla-like dilated cystic changes, the walls of which showed spindle cell proliferation, causing pneumothorax. Hormone therapy was started after benign metastasizing leiomyoma resection; pneumothorax has not recurred in 7 months. Multiple residual lung nodules have decreased or disappeared on CT.
authors.affiliation: Division of Thoracic Surgery, Matsue Red Cross Hospital, Matsue, Japan.
authors.forename: Ryo
authors.initials: R
authors.lastname: Okabe
authors.affiliation: Department of Thoracic Surgery, Kitano Hospital, Osaka, Japan.
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Shoji
authors.affiliation: Department of Thoracic Surgery, Kitano Hospital, Osaka, Japan.
authors.forename: Cheng-Long
authors.initials: CL
authors.lastname: Huang
keywords: benign metastasizing leiomyoma; pneumothorax