School ager who started coughing while eating pizza Pediatric Imaging Surgical-Pathological-Clinical August 20, 2024August 1, 2024 Bronchoscopic image at the level of the carina (above) shows a blue foreign body in the left mainstem bronchus which was pulled out of the airway (middle) and upon removal was found to be a blue crayon (below). The diagnosis was airway foreign body in the left mainstem bronchus. Related Published August 20, 2024August 1, 2024