Duodenal relationships of intestinal structure

Gilkins, Jessica, Johnice Littlejohn, Serena Tran, and Mary Tracy-Bee

The small intestine, through which our digested food passes, is divided into three parts: the duodenum, jejunum, and ileum.  The duodenum is the most clinically important as it receives bile from the liver and pancreatic juices from the pancreas , all of which help break up our food chemically.

The structures through which bile and pancreatic juices enter in the duodenum include the major duodenal papilla and the minor duodenal papilla.  The major duodenal papilla has been reported to lie at a distance of 7-10 cm from the pyloric sphincter and 2.0 cm from the minor duodenal papilla.

Our study investigated the distances between the pyloric sphincter, major duodenal papilla and the minor duodenal papilla.

This information is clinically relevant when performing investigative procedures including the Endoscopic Retrograde Cholangiopancreatography (ERCP) which involves accurate injection into the major duodenal papilla.