Laparoscopic left colectomy with a lateral to medial dissection

Nowadays with the advent of new surgical instrumentation (such as transanal robotic surgery), old rules of oncological surgery (i.e., first vascular control, medial to lateral dissection) are no longer valid. A good oncological specimen with free margins and a lymph node number up to 12 is mandatory. As a result, it is essential to adapt the dissection in patients to allow for a safe dissection and to prevent morbidity. This clinical case is that of a young thin man with a Treitz’s flexure lower than usual, and subsequently the dissection occurs mostly lateral to medial.