Larynx atresia

A rare larynx anomaly characterized by complete absence of the laryngeal lumen resulting in congenital upper airway obstruction syndrome which, without fetal or neonatal intervention, is incompatible with life. Fetal sonography shows a dilated trachea, hyperechoic lungs, pleural effusion, minimal fetal abdominal ascites or hydrops, and amniotic fluid abnormalities.