Fig. 2

Colonoscopy of anastomosis 6 months after operation. (a) end-to-end anastomosis anastomosis, scarring around the anastomotic port, and mild stenosis. (b) anastomosis healed well, and the surrounding mucosa is rosy. (c) lateral anastomotic port healed well, the mucosa and the anastomosis are smooth. (d) lateral anastomotic orifice healed well, with smooth surrounding mucosa, and there is a stump diverticulum around the anastomotic port