CXR
Useful to confirm diagnosis, does not rule out
Negative in >50% of tracheal<unk>  bodies, 25% of bronchial<unk>  bodies, and may be missed if very small and/or radiopaque
Inspiratory/expiratory films may show relative hyperinflation proximal to obstruction on end-expiration
Consider lateral decubitus films on right and left side
Useful to confirm diagnosis, does not rule out
Negative in >50% of tracheal<unk>  bodies, 25% of bronchial<unk>  bodies, and may be missed if very small and/or radiopaque
Inspiratory/expiratory films may show relative hyperinflation proximal to obstruction on end-expiration
Consider lateral decubitus films on right and left side
Aspirated foreign body
Larynx fracture
Parapharyngeal space infection
Tracheobronchial tear/injury
Ingested foreign body
Thyroid gland injury/trauma
Buccal space infections
Tracheal injury