Fig. 2From: Opioid-free anesthesia for a child with trisomy 13 with obstructive sleep apnea: a case reportPre- and postoperative lateral-view radiographs of the nasopharynx. a Preoperative image. b Postoperative image. Bloated adenoids (a: arrow) encroach on and severely obstruct the nasopharyngeal airway (a: dotted line). After tonsillectomy (b: arrow), the nasopharyngeal airway is open, allowing the patient to breathe with the mouth closedBack to article page