World Library  
Flag as Inappropriate
Email this Article

Annular pancreas

Article Id: WHEBN0003250107
Reproduction Date:

Title: Annular pancreas  
Author: World Heritage Encyclopedia
Language: English
Subject: WikiProject Academic Journals/Journals cited by Wikipedia/S36, Polycystic liver disease, Pancreas divisum, Accessory pancreas, Intestinal malrotation
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Annular pancreas

Annular pancreas
Classification and external resources
ICD-10 Q45.1
ICD-9-CM 751.7
OMIM 167750
MedlinePlus 001142

Annular pancreas is a rare condition in which the second part of the duodenum is surrounded by a ring of pancreatic tissue continuous with the head of the pancreas. This portion of the pancreas can constrict the duodenum and block or impair the flow of food to the rest of the intestines. It is estimated to occur in 1 out of 12,000 to 15,000 newborns.[1] The ambiguity arises from the fact that not all cases are symptomatic.[2]

Contents

  • Causes 1
  • Presentation 2
  • Diagnosis 3
  • Treatment 4
  • References 5

Causes

It is typically associated with abnormal embryological development, however adult cases can develop. It can result from growth of a bifid ventral pancreatic bud around the duodenum, where the parts of the bifid ventral bud fuse with the dorsal bud, forming a pancreatic ring. It can also result if the ventral pancreatic bud fails to fully rotate, so it remains on the right or if the dorsal bud rotates in the wrong direction, such that the duodenum is surrounded by pancreatic tissue. Blockage of the duodenum develops if inflammation (pancreatitis) develops in the annular pancreas.

Presentation

Early signs of abnormality include polyhydramnios (an excess of amniotic fluid), low birth weight, and feeding intolerance immediately after birth.

Diagnosis

Postnatal diagnostic procedures include abdominal x-ray and ultrasound, CT scan, and upper GI and small bowel series.

Treatment

Treatment usually is bypassing the obstructed segment of duodenum by duodeno-jejunostomy. Another approach is laparoscopic gastrojejunostomy or duodenojejunostomy.[3]

References

  1. ^ Lainakis N; Antypas S; Panagidis A; et al. (2005), "Annular pancreas in two consecutive siblings: an extremely rare case", European Journal of Pediatric Surgery 15 (5): 364–8,  
  2. ^ Ravitch, MM. (1975). "The pancreas in infants and children". Surg Clin North Am 55 (2): 377–85.  
  3. ^ De Ugarte DA, Dutson EP, Hiyama DT (2006). "Annular pancreas in the adult: management with laparoscopic gastrojejunostomy". The American surgeon 72 (1): 71–3.  
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.