Zarokosta M, Piperos ?, Zoulamoglou M, Theodoropoulos P, Nikou E, Flessas I, Boumpa E, Bonatsos V, Noussios G, Mariolis-Sapsakos T. Anomalous course of the sigmoid colon and the mesosigmoid encountered during colectomy. A case report of a redundant loop of sigmoid colon. Int J Surg Case Rep. 2018;46:20-23.