Leiden - Video Colonoscopy: transition from ileum to caecum - English labels

This video shows a part of a colonoscopy, with normal anatomy: it starts in the terminal ileum, where the circular folds and the intestinal villi can be seen and are clearly indicated. Then the scope is gradually retracted, passing the ileocaecal junction to arrive in the caecum. In the ascending colon the semilunar folds can be seen and are indicated, one can also see the absence of villi here. The clear endoscope imagery with high magnification in a life person, allows to see the individual villi and the difference between the circular and the semilunar folds in a way that is impossible to attain in an anatomical dissection lab. The video is created by A.M.J. Langers, MD, PhD, gastroenterologist, dept. of Gastroenterology, and edited by A.L. Schoenmakers, MD, dept. of Anatomy and Embryology, both at Leiden University Medical Center, the Netherlands.