A. Formation of loops in the colon can cause patient discomfort, difficulty in advancing the scope, and may increase the risk of perforation. B. Here an alpha loop has been formed in the sigmoid colon, facilitating passage into the descending colon. Clock
Mobilization of the sigmoid colon to expose the left ureter as it crosses the pelvic brim. The iliac vessels are seen to the left of the ureter.
Laparoscopic colostomy. A. The preselected colostomy site has been prepared by excising a disk of skin and subcutaneous tissue down to fascia. Fascia is left intact to prevent loss of pneumoperitoneum. A trocar is placed through the center of the ostomy s