1. 13 The left ureter was tunneled under the sigmoid mesocolon towards the right lower abdomen.

2. By extending the incision in the mesocolon (2×) and by additional anteriorcolic gastroenterostomy in the third as well as by Brauns enteroanastomosis in the afferent loop syndrome complete cure was obtained.

3. After discussing the types of obstructions the author provides information for the avoidance of evacuation disorders and on measures during emergency procedures, avoiding retrocolic anastomosis in the presence of a short, adipose mesocolon.

4. **Note 3:** The CRM may be referred to as * Circumferential radial margin * Circumferential resection margin * Mesenteric (mesocolon) margin * Radial margin * Soft tissue margin **Note 4:** According to the AJCC 8th edition, "the CRM is the distance in millimeters between the deepest point of tumor invasion in the primary cancer and the margin