This is useful to provide feedback to surgeons on the plane of surgery achieved. Derived for the Medical Research Council trials of CLASICC and CR07 it was also adopted in the Dutch TME trial. It is now included in the UK Royal College of Pathologists Minimum Dataset for reporting colorectal cancer.
These are found under the link above. Below are mesocolioc, intramesocolic and muscularis propria resections with the specimens viewed after formalin fixation