A case of endobronchial leiomyoma treated by sleeve resection of the intermediate bronchus

Abstract

A 59-year-old male visited our hospital with a chief complaint of dry cough. Chest X-ray showed an atelectasis of the right middle and lower lobes. Chest CT revealed a polypoid lesion that completely obstructed the intermediate bronchus, expanding its lumen. Bronchoscopy revealed a grayish white endobronchial polypoid mass, and biopsy yielded a histological diagnosis of leiomyoma. A sleeve resection of the intermediate bronchus including the tumor and end-to-end anastomosis was performed successfully. Immunohistochemical staining for α-SMA was positive. DNA analysis of the tumor based on flow cytometry showed a diploid pattern. The patient showed a significant improvement on pulmonary function tests and is doing well without any evidence of tumor recurrence 3 years postoperatively.