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Complex S10+S7b Segmentectomy by Pulmonary Ligament Approach Based on B7 Branching Pattern.
Yukitaka Sato1, Fumitsugu Kojima1, Shinsaku Kabemura1
1Department of Thoracic Surgery, St. Luke's International Hospital, Tokyo, Japan.
Surgical Case Reports
|November 7, 2025
Summary
Segmentectomy is standard for early lung cancer, but right basal lesions are challenging. A pulmonary ligament approach enabled a complex S10+S7b segmentectomy for lung cancer with bilateral B7 branching.
Area of Science:
- Thoracic Surgery
- Surgical Oncology
- Pulmonary Medicine
Background:
- Segmentectomy is the standard treatment for early-stage lung cancer.
- Right basal segment (S10) segmentectomy is technically challenging due to complex B7 bronchial branching patterns.
- B7 branching patterns vary anatomically relative to the basal vein (BV): ventral, bilateral, and dorsal.
