Posterior choanal atresia.
D000015:Abnormalities, Multiple; D000402:Airway Obstruction / Q000209:etiology; D000013:Congenital Abnormalities / Q000145:classification / Q000150:complications / Q000000981:diagnostic imaging / Q000628:therapy; D004750:Enteral Nutrition; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007442:Intubation, Intratracheal; D008297:Male; D009058:Mouth Breathing; D009305:Nasopharynx / Q000002:abnormalities* / Q000000981:diagnostic imaging; D011859:Radiography; D012131:Respiratory Insufficiency / Q000209:etiology