Case Report of the Descending Colon Located Completely in the Right Extraperitoneal Cavity and Sigmoid Colon Located in the Right Quadrant in a Patient with a Splenic Flexure Tumor: a Rare Anomaly

摘要

Cases in which congenital anomalies of the colon and colon tumors are observed together are very rare. The aim of this article is to present a splenic flexure tumor case, which possessed the anomaly of the descending colon in the right extraperitoneal space and the sigmoid colon located in the right quadrant. Similar findings have previously been reported in two cases in cadaveric studies.