Fig. 3
From: Abnormal origin of the right posterior segmental bronchus: case report and literature review
Three-dimensional reconstruction of the patient. The apical segmental bronchus (B1) and anterior segmental bronchus (B3) originate from the right upper lobe bronchus, while the posterior segmental bronchus (B2) originates from the bronchus intermedius. A2a originates from the posterior recurrent branching artery, A2b originates from the posterior ascending branching artery, and there is no central vein in the right upper pulmonary vein and only a V2t, which enters the left atrium from the posterior aspect of the right lower lobe bronchus. A, dorsal view; B, ventral view; C + D: lateral view