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Introduction The aims of the preoperative evaluation of a patient with rectal cancer are to assess both the patient and the tumor and offer a tailored treatment plan that optimizes both cure and sphincter preservation. Accurate staging of rectal cancer…
Anatomy of the Colon and Rectum Colon The colon can be divided embryologically into the midgut (the transverse colon and portions proximal to it) and the hindgut (the distal half of the colon). The length of the colon is approximately…