Fig. 2

Fluoroscopic and endoscopic findings after puncture and endoscopic balloon dilation. A Pean forceps were inserted via the gastrostomy toward the caudal side of the anastomotic site. Contrast radiography showed that the length of the stenosis was several millimeters (black arrow, peroral conventional endoscope; white arrow, Pean forceps via gastrostomy). B An ultrathin endoscope was inserted via the gastrostomy after the puncture. The puncture hole was present at the center of the lumen. C After endoscopic balloon dilatation had been performed three times, the hole was deemed sufficiently dilated