Abstract
Leiomyoma of the trachea and bronchus is a rare tumor, only 31 cases having been reported in the Japanese literature. We report here a case of leiomyoma of the right upper lobe bronchus which was successfully operated on. A 66 year-old man visited our hospital because of hemosputum. The diagnosis of leiomyoma of the bronchus was made by a preoperative bronchofiberscopic biopsy. Thoracotomy was made by right posterolateral incision at the Vth rib bed. End to end anastomosis was performed after sleeve resection of the right upper lobe bronchus containing the tumor. The removed specimen revealed that a tumor with smooth surface protruded into the bronchial lumen. It was elastic, hard and 5×4×4 mm in size. Microscopic examinations showed that the tumor originated from bronchial smooth muscle, covered with striated columner epithelium, and was composed of intertwining bundle of spindle cells. The final pathological diagnosis was that of leiomyoma with no evidence of malignancy. Thirty-two cases containing the present case were clinically reviewed.
