School ager who started coughing while eating pizza 1 week ago and now is febrile

CXR of chronic airway foreign body in left mainstem bronchus
CXR AP shows extensive atelectasis and consolidation in the lingula and left lower lobe with tracheal and mediastinal shift to the left. There is a small left pleural effusion.

The diagnosis was a chronic airway foreign body in the left mainstem bronchus which on bronchoscopy was found to be a crayon.