fig4
![The importance of pathological quality control for rectal surgery](https://image.oaes.cc/c9101d49-5131-4e8b-884a-d32b8c71a76c/2876.fig.4.jpg)
Figure 4. Two abdominoperineal specimens, the first resected in the sphincteric plane with an obvious area of waisting towards the base of the mesorectum/top of the sphincters (left) and the second resected in the extra-levator plane with no visible waisting (right)