Fig. 2From: Microlaryngoscopic surgery for pyriform sinus fistulas in children: a report of two casesa Barium esophagography shows a pyriform sinus fistula (arrow) on the left side. b Oral contrast coronal computed tomography shows a fistula (arrow). c Barium esophagography after open neck surgery shows recurrence of the pyriform sinus fistula (arrow)Back to article page