Rare location and drainage pattern of right pulmonary veins and aberrant right upper lobe bronchial branch: A case report

Figure 3 Abnormal right preeparterial bronchus. A: Right preeparterial bronchus arose from right main bronchus alone in thin-section computed tomography; B: B²⁺³ arose below right preeparterial bronchus from right main bronchus; C: Right preeparterial bronchus and B²⁺³ under thoracoscope; D: Stump of right preeparterial bronchus after stapling and B²⁺³ under thoracoscope; E: Three-dimensional reconstruction of trachea and bronchus.