Recanalization of anastomotic occlusion following rectal cancer surgery using a rendezvous endoscopic technique with transillumination: A case report

Figure 1 Complete occlusion of the colorectal anastomosis. A: Endoscopic view from the colonic side; B: 1% methylene blue solution was used to confirm the obstruction; C: Endoscopic view from the rectal side.

Figure 2 Details of endoscopic treatment. A: Transillumination across the occlusive anastomosis; B: A small incision was made with an iKnife; C: Endoscopic view from the rectal side during the incision; D: Radial incision was performed successfully from the colonic side to the rectum; E: Endoscopic image showing dilation of the incision by the opposing endoscope; F: Recanalization of the occluded anastomosis.

Figure 3 Endoscopy three weeks after treatment. No anastomotic strictures or leakage were observed.

Figure 4 Air and barium double-contrast radiography. Luminal continuity was observed to be re-established (arrows show the anastomosis).