Esophagus Stomach Duodenum Capsule Endoscopy Inflammatory Bowel Disease Colon & Ileum Miscellaneous

Normal Colon and Ileum

Left: Anorectal junction, seen at retroflexion.

Right: Three semilunar folds, the "valves of Houston".

Left: Normal vascular pattern.

Center: Typical triangular folds characteristic of the transverse colon.

Right: Hepatic flexure of the colon, showing the bluish indentation on the colonic lumen made by the adjacent liver.

Left: Tip of the cecum.

Center: Opening of ileocecal valve is seen tangentially at left; orifice of appendix is visible just to right of center.

Right: Normal terminal ileum as seen after passing the colonoscope through the ileocecal valve.

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