Abstract
Accessory cardiac bronchus (ACB) is a rare anomaly of the tracheobronchial tree, which is usually discovered incidentally during examinations for other thoracic diseases. This report describes a case of ACB associated with lung cancer. A 75-year-old man had primary lung cancer in clinical stage IIA(cT2bN0M0). He was suspected to have ACB by CT and bronchoscopic examination. Intraoperative findings revealed a small anomalous bronchus originating from the truncus intermedius. We performed a right lower lobectomy and combined resection of ACB. Awareness of this anomaly before lung surgery is important to avoid perioperative complications, including bronchial fistula.
