Minor duodenal papilla

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Minor duodenal papilla
Details
Latin papilla duodeni minor
Identifiers
Code p_03
Dorlands
/Elsevier
12610358
TA A05.6.02.016
FMA 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 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.[1]

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]

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,[2] :893 or when patent and ligated.[1]

History[edit]

The other names of minor duodenal papilla is Santorini's minor caruncle.

See also[edit]

This article uses anatomical terminology; for an overview, see anatomical terminology.

External links[edit]

References[edit]

  1. ^ a b c d e 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. 
  2. ^ Davidson's principles and practice of medicine. (21st ed. ed.). Edinburgh: Churchill Livingstone/Elsevier. 2010. ISBN 978-0-7020-3084-0.  |first1= missing |last1= in Authors list (help)