{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,12]],"date-time":"2026-06-12T10:22:16Z","timestamp":1781259736588,"version":"3.54.1"},"reference-count":6,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2024,12,26]],"date-time":"2024-12-26T00:00:00Z","timestamp":1735171200000},"content-version":"vor","delay-in-days":5,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,12,21]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>The frequency of bronchial branching abnormalities is about 0.6%, of which about 75% are related to the right upper lobe. The frequency of left B1\u2009+\u20092 transition bronchus is even rarer, but a few cases have been reported. A 43-year-old man, who presented with an abnormal pulmonary nodule suspected to be lung cancer in the left S4 segment, underwent video-assisted thoracoscopic segmentectomy of S3 plus lingular segment. Preoperative three-dimensional contrast-enhanced computed tomography (CT) revealed a displaced B1\u2009+\u20092 bronchus arising from the left main bronchus, which ascends behind the main pulmonary artery. Video-assisted thoracic surgery was performed successfully, and the nodule was pathologically diagnosed as a lymphoma. Preoperative three-dimensional contrast-enhanced CT was very useful to detect this rare bronchial abnormality. In the present case, three-dimensional CT allowed us to safely operate on a patient with a rare B1\u00a0+\u20092 displaced bronchus in the left upper lobe.<\/jats:p>","DOI":"10.1093\/jscr\/rjae810","type":"journal-article","created":{"date-parts":[[2024,12,26]],"date-time":"2024-12-26T16:24:02Z","timestamp":1735230242000},"source":"Crossref","is-referenced-by-count":1,"title":["Thoracoscopic segmentectomy for lung tumour with displaced B1\u00a0+\u20092"],"prefix":"10.1093","volume":"2025","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-8263-073X","authenticated-orcid":false,"given":"Masahiro","family":"Miyajima","sequence":"first","affiliation":[{"name":"Department of Thoracic Surgery, Sapporo Medical University , Sapporo ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keishi","family":"Ogura","sequence":"additional","affiliation":[{"name":"Division of Radiology and Nuclear Medicine, Sapporo Medical University , Sapporo ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Taijirou","family":"Mishina","sequence":"additional","affiliation":[{"name":"Department of Thoracic Surgery, Sapporo Medical University , Sapporo ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Atsushi","family":"Watanabe","sequence":"additional","affiliation":[{"name":"Department of Thoracic Surgery, Sapporo Medical University , Sapporo ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2024,12,26]]},"reference":[{"key":"2024122616235072600_ref1","doi-asserted-by":"crossref","first-page":"1607","DOI":"10.1016\/S0140-6736(21)02333-3","article-title":"West Japan Oncology Group and Japan Clinical Oncology Group. 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