2016 Volume 30 Issue 6 Pages 721-725
A 38-year-old man was identified as having a nodular shadow in the right lower lung field on a chest radiograph, with a tendency towards an increase in size. He was referred to our institute for detailed examination. Chest CT revealed a smooth, well-defined nodular shadow in S10 of the right lung. The tumor was suspected as lung cancer stage IA, clinical T1bN0M0, but we could not reach a pathological diagnosis. Therefore, he was referred to our department for surgery. We performed thoracoscopic partial resection of the right lower lobe. On frozen-section examination, the tumor was suspected to be derived from the bronchial glands. We performed right lower lobectomy and mediastinal node dissection, as it was difficult to exclude lung cancer from the preoperative imaging findings. The tumor was histopathologically diagnosed as an adenoid cystic carcinoma. We report a rare case of adenoid cystic carcinoma arising in the peripheral lung. The literature is reviewed.
