Image 1: Intra-operative picture showing the proximal esophageal pouch (thin white arrow) and blind tracheal diverticulum (thick white arrow).

Image 2: Intra-operative picture showing right TB (white arrow).

Image 3: Post-operative MRI showing right upper lobe bronchus originating at the level of the carina.

Image 4: Schematic representation of aberrant bronchi to the upper lobes: prearterial (true right tracheal) (1), preeparterial (right “tracheal”) (2), posteparterial (3), eparterial (true left tracheal) (4), eparterial (left “tracheal”) (5), prehyparterial (6), and posthyparterial (7) bronchi.

LULB = left upper lobe bronchus, PA = pulmonary artery, RULB = right upper lobe bronchus.

(reproduced with permission of publishers of Radiographics).