Thoracoscopic Segmentectomy for Right Upper Lobe With Unique Anatomic Variation

Combined variation of bronchus and pulmonary vein is rare. We report the case of a 32-year-old man with lung adenocarcinoma in whom three-dimensional computed tomography bronchography and angiography displayed a unique anatomic variation in the right upper lobe. The posterior subsegmental bronchi originated from the apical segmental bronchus and the anterior segmental bronchus, respectively; the apical subsegmental vein shared a trunk with the posterior subsegmental vein. Based on this discovery, combined pulmonary segmentectomy was performed accurately.