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Updated: May 8, 2025

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Thoracoscopic segmentectomy for lung tumour with displaced B1 + 2
Masahiro Miyajima1, Keishi Ogura2, Taijirou Mishina1
1Department of Thoracic Surgery, Sapporo Medical University, Sapporo, Japan.
A rare left bronchial abnormality, the B1+2 transition bronchus, was identified using 3D CT scans. This imaging technique enabled safe surgical removal of a lung nodule in a patient with this unusual anatomy.
Area of Science:
- Thoracic Surgery
- Diagnostic Imaging
- Pulmonary Medicine
Background:
- Bronchial branching abnormalities are uncommon, with most cases affecting the right upper lobe.
- The left B1+2 transition bronchus is a rare anomaly, with limited case reports.
- Accurate preoperative identification of anatomical variations is crucial for safe thoracic surgery.
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