Right Upper Lobectomy for a Lung Cancer Patient with a Right Displaced B3 Bronchus
右B3転位気管支を伴う右上葉肺癌の2切除例

Keisuke Ohno, Masaki Ozeki, Hideki Negishi, Kentaro Minegishi, Mitsuru Maki, Hiroyoshi Tsubochi, Shunsuke Endo
The Journal of the Japan Society for Respiratory Endoscopy  
━━ Background. A right displaced B 3 bronchus is a relatively rare anomaly. We report two cases of lung cancer involving the right upper lobe in which a right displaced B 3 bronchus branched from the middle lobe bronchus. Case 1. A 45-year-old woman with a 1.8-cm mass in the right S 1 underwent transbronchial biopsy (TBB) and was diagnosed with adenocarcinoma (cT1bN0M0 stage IA2). Case 2. A 69-year-old woman with a 2.6-cm mass in the right S 2 underwent TBB and was diagnosed with adenocarcinoma
more » ... (cT1bN0M0 stage IA3). In both cases, the B 3 bronchus arose from the middle lobe and right upper lobectomy was performed by dividing B 1 +B 2 and B 3 separately. Conclusion. The presence of bronchial anomalies in lung cancer patients necessitates preoperative evaluation, including CT and bronchoscopy, for safe surgical management. In such cases, the range of hilar and mediastinal lymph node dissection should be determined based on the tumor location.
doi:10.18907/jjsre.43.1_16 fatcat:evab4yq7fncgjeojxdbcrxf5jy