Defining the rectum: surgically, radiologically and anatomically

This is the authors' abstract. We don't add key points for this paper.

The terminology used in relation to the rectum varies considerably, added to this there is the subjective nature of clinical assessment and variability in the anatomy of the rectum and anus. It is imperative that definitions are clarified and standardized for use by all members of the multidisciplinary team involved in the care of patients with rectal cancer.