Minor duodenal papilla

Minor Duodenal Papilla

The minor duodenal papilla is located in the second part of the duodenum.

The Minor Duodenal Papilla is a small elevation located in the second part of the duodenum, the first section of the small intestine. It is the site where the accessory pancreatic duct, also known as the Duct of Santorini, opens into the duodenum.

Anatomy

The minor duodenal papilla is situated about 2 cm proximal to the Major duodenal papilla, which is the site where the main pancreatic duct and the common bile duct open into the duodenum. The minor duodenal papilla is usually smaller than the major duodenal papilla.

Function

The minor duodenal papilla plays a crucial role in the digestive system. It allows the passage of pancreatic juices from the accessory pancreatic duct into the duodenum. These juices contain enzymes that aid in the digestion of food.

Clinical Significance

In some cases, the minor duodenal papilla may be the site of a condition known as Pancreas divisum, which is the most common congenital anomaly of the pancreas. This condition occurs when the main pancreatic duct and the accessory pancreatic duct do not fuse during fetal development, resulting in the majority of the pancreatic juices draining through the minor duodenal papilla. This can lead to recurrent pancreatitis.

See Also

• Duodenum
• Pancreas divisum
• Duct of Santorini
• Major duodenal papilla