Discussion Gonzalez-Crussi and colleagues 1 first described BB as a right lower lobe
bronchus (often with a middle lobe bronchus) arising from the left main bronchus and
bridging the lower mediastinum. However, Grillo and associates 2, 3 described the BB
differently. They named the BB as the bronchus between the trachea and the residual carina
between the right and left main bronchus. They reported 2 patients with stenotic BB very
similar to that seen in our patient. 2, 3 That is why we chose Grillo's definition. BB is …