Thoracoscopic left S³ segmentectomy for lung cancer with left B¹⁺² displaced anomalous bronchus: A case report

Abstract

Displaced anomalous bronchi are rare bronchial abnormalities that may be accompanied by an abnormal branching of pulmonary vessels and abnormal lobulation, and therefore, should be sufficiently examined before surgery. We report our experience of a patient who underwent thoracoscopic left S³ segmentectomy for lung cancer with a left B¹⁺² displaced anomalous bronchus. The patient was a 71-year-old man in whom CT revealed a 1.3 cm part-solid nodule in the left S³. This nodule was suspected to be primary lung cancer, and thoracoscopic left S³ segmentectomy was planned. Preoperative three-dimensional computed tomography (3D-CT) revealed a left B¹⁺² anomalous bronchus displaced through the dorsal side of the pulmonary artery. We carefully examined the anatomical relationship between the bronchus and pulmonary vessels based on preoperative 3D-CT. Finally, thoracoscopic left S³ segmentectomy was successfully completed.