occult laryngeal foreign body mimicking normal thyroid cartilage

introduction foreign body aspiration is common especially in children. the absence of history of choking does not rule out the diagnosis. diagnosis required high index of suspicion. case presentation undiagnosed foreign body aspiration mostly occurs in bronchial airway rather than larynx and can cause severe complications. in this article, we report a silent laryngeal foreign body aspiration to show that careful history taking and accurate evaluation of radiography are important factors for diagnosis. conclusions the single most significant factor leading to detect of tracheobronchial foreign body aspiration is a high index of suspicion; this case highlights the possibility of a foreign body in the airway in patients who presents with a recent onset of chronic respiratory complaints.