Minor duodenal papilla
| Minor duodenal papilla | |
|---|---|
| Details | |
| Identifiers | |
| Latin | papilla duodeni minor |
| TA98 | A05.6.02.016 |
| TA2 | 2956 |
| FMA | 15075 |
| Anatomical terminology | |
The minor duodenal papilla is the opening of the accessory pancreatic duct into the descending second section of the duodenum.
Structure
[edit]The minor duodenal papilla is contained within the second part of the duodenum. It is situated 2 cm proximal to the major duodenal papilla, and thus 5–8 cm from the opening of the pylorus. The gastroduodenal artery lies posterior.[1]
Variation
[edit]The minor duodenal papilla may or may not contain a functioning sphincter and patent duct. When present, the sphincter is known as the sphincter of Helly, and the duct as the accessory pancreatic duct of Santorini. In 10% of people, the minor duodenal papilla is the prime duct for drainage of the pancreas,[1] although in others it may not be present at all.[2]
Pain from the region will be referred to the epigastric region of the abdomen due to its associated dermatomes. [citation needed]
Function
[edit]The duct is an embryological remnant, however in a small majority of people drains the pancreas.[1] It is present in several domestic animals (e.g., dogs, cats and horses), being the sole drain of the pancreas in pigs and cows through the ductus pancreaticus accessorius.[3]
Development
[edit]The minor duodenal papilla represents the remnants of the opening of the accessory pancreatic duct, which drains the dorsal pancreatic bud during foetal development.
Clinical significance
[edit]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,[4] : 893 or when patent and ligated.[1]
History
[edit]The other names of minor duodenal papilla is Santorini's minor caruncle.
See also
[edit]References
[edit]- ^ a b c d 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.
{{cite book}}:|first=has generic name (help) - ^ Skandalakis, editor in chief John E. (2004). Skandalakis' surgical anatomy : the embryologic and anatomic basis of modern surgery. Athens, Greece: PMP. pp. Chapter 21. Pancreas. ISBN 9603990744.
{{cite book}}:|first=has generic name (help) - ^ König, Liebich (2020). Veterinary Anatomy of Domestic Animals (7th ed.). Stuttgart: Thieme. p. 856. ISBN 978-3-13-242933-8.
- ^ Colledge, Nicki R.; Walker, Brian R.; Ralston, Stuart H. (editors); Britton, Robert (illustrator) (2010). Davidson's principles and practice of medicine (21st ed.). Edinburgh: Churchill Livingstone/Elsevier. ISBN 978-0-7020-3084-0.
{{cite book}}:|first3=has generic name (help)
External links
[edit]- Swiss embryology (from UL, UB, and UF) sdigestive/pankreas01
