Boyden classification of bronchi
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The Boyden classification of bronchi refers to the standard nomenclature used to describe bronchopulmonary segmental anatomy.
Each lung has 10 segments, however, on the left, the first two segments share a common trunk and are hence B1/2. Also given the shared trunk on the left of the lower lobe anterior and medial basal segments forming the anteromedial segment, B7 is omitted.
- right upper lobe
- right middle lobe (or more correctly - just middle lobe)
- right lower lobe
The left lung is subdivided into two lobes and thereby, into eight segments. The notation in brackets refers to the Boyden classification.
- 1- BOYDEN EA. A critique of the international nomenclature on bronchopulmonary segments. Diseases of the chest. 1953, 23 (3): 266-9. Pubmed