Congenital high airway obstruction syndrome in mid‐trachea: endotracheal bronchogenic cyst

Abstract

Congenital high airway obstructions are rare conditions that can lead to fetal hydrops and perinatal death due to pulmonary edema from fluid accumulation. Intrinsic airway obstructions, collectively known as congenital high airway obstruction syndrome (CHAOS), are typically associated with laryngeal and upper tracheal abnormalities 1 .We report a case of CHAOS derived from an endotracheal cyst, a variant of bronchogenic cyst, which are the most common cystic lesions of the mediastinum. Bronchogenic cysts are classified based on their relation to the tracheal wall, as paratracheal, intramural or