Minor duodenal papilla
|Minor duodenal papilla|
|Latin||papilla duodeni minor|
The minor duodenal papilla is contained within the second part of the duodenum. It is situated 2cm proximal to the major duodenal papilla, and thus 5-8cm from the opening of the pylorus. The gastroduodenal artery lies posterior. 
The minor duodenal papilla may or may not contain a functioning sphincter and patient duct. When present, the sphincter is known as the sphincter of Helly, and the duct the accessory pancreatic duct of Santorini. In 10% of people, the minor duodenal papilla is the prime duct for drainage of the pancreas,  although in others it may not be present at all. 
Pain from the region will be referred to the epigastric region of the abdomen due to its associated dermatomes.
The duct is an embryological remnant, however in a small majority of people drains the pancreas. 
When patent, the minor duodenal papilla may be associated with recurrent pancreatitis. This is particularly common in a subset of people, when the dorsal pancreatic bud fails to fuse with the ventral pancreatic bud, a condition called pancreatic divisum, :893 or when patent and ligated. 
This article uses anatomical terminology; for an overview, see anatomical terminology.
- Skandalakis, editor in chief John E. (2004). Skandalakis' surgical anatomy : the embryologic and anatomic basis of modern surgery. Athens, Greece: PMP. pp. Chapter 16: Small Intestine. ISBN 9603990744.
- Davidson's principles and practice of medicine. (21st ed. ed.). Edinburgh: Churchill Livingstone/Elsevier. 2010. ISBN 978-0-7020-3084-0.