Giant inflammatory myofibroblastic tumor of the hypopharynx:an unusual cause of acute upper airway obstruction in a 6-year old child

Acute upper airway obstruction(UAO)in children is a common disease in the emergency department.It is life-threatening and usually caused by laryngospasm or laryn-geal edema owing to infection,allergy,or a foreign body.1 In addition,pediatric UAO can also be the result of laryngopharyngeal space-occupying lesions,such as laryngeal papilloma,lymphangioma,hemangioma,or cyst.Malignancy is uncommon.