Single incision laparoscopic surgery in sigmoid colon cancer

We modify traditional trans-umbilical single incision laparoscopic surgery to trans- right lower abdomen single incision laparoscopic surgery. This kind of method can improve the vision and operative plane in a straight line and the chopstick effect between instruments and reduce the operative difficulty and shorten the operative time and increase the operative quality. It is easier to conduct and promote the single incision laparoscopic surgery. Key words: Colorectal neoplasms; Laparoscopes; Single incision laparoscopic surgery (SILS); Laparoscopic endo single incision surgery (LESS)