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{{Infobox_Disease |
__NOTOC__
  Name          = {{PAGENAME}} |
'''For patient information page on this topic, click [[{{PAGENAME}} (patient information)|here]]'''.
  Image          = |
{{Annular pancreas}}
  Caption        = |
  DiseasesDB    = |
  ICD10          = {{ICD10|Q|45|1|q|38}} |
  ICD9          = {{ICD9|751.7}} |
  ICDO          = |
  OMIM          = 167750 |
  MedlinePlus    = 001142 |
  eMedicineSubj  = |
  eMedicineTopic = |
  MeshID        = |
}}
{{SI}}
{{CMG}}
{{CMG}}
==[[Annular pancreas overview|Overview]]==


{{Editor Help}}
==[[Annular pancreas historical perspective|Historical Perspective]]==


==Overview==
==[[Annular pancreas pathophysiology|Pathophysiology]]==
==[[Annular pancreas causes|Causes]]==


'''Annular pancreas''' is a rare condition in which the second part of the [[duodenum]] is surrounded by a ring of [[pancreas|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 [[intestine]]s.  It occurs in 1 out of 12,000 to 15,000 newborns.<ref name="pmid16254852">{{cite journal |author=Lainakis N, Antypas S, Panagidis A, ''et al'' |title=Annular pancreas in two consecutive siblings: an extremely rare case |journal=European journal of pediatric surgery : official journal of Austrian Association of Pediatric Surgery ... [et al] &#61; Zeitschrift für Kinderchirurgie |volume=15 |issue=5 |pages=364–8 |year=2005 |pmid=16254852 |doi=10.1055/s-2005-865838}}</ref>
==[[Annular pancreas differential diagnosis|Differentiating Annular Pancreas from other Diseases]]==


==Causes==
==[[Annular pancreas epidemiology and demographics|Epidemiology and Demographics]]==
It is typically associated with abnormal embryological development, however adult cases can develop. 


==Presentation==
==[[Annular pancreas risk factors|Risk Factors]]==
Early signs of abnormality include [[polyhydramnios]], or an excess of [[amniotic fluid]], [[low birth weight]], and feeding intolerance immediately after birth. 


==Diagnosis==
==[[Annular pancreas screening|Screening]]==


Postnatal diagnostic procedures include abdominal x-ray and ultrasound, CT scan, and upper GI and small bowel series.
==[[Annular pancreas natural history, complications and prognosis|Natural History, Complications and Prognosis]]==


==Diagnostic Findings==
==[[Annular pancreas diagnosis|Diagnosis]]==
[[Annular pancreas history and symptoms|History and Symptoms]] | [[Annular pancreas physical examination|Physical Examination]] | [[Annular pancreas laboratory findings|Laboratory Findings]] | [[Annular pancreas x ray|X Ray]] | [[Annular pancreas CT|CT]] | [[Annular pancreas MRI|MRI]] | [[Annular pancreas echocardiography or ultrasound|Echocardiography or Ultrasound]] | [[Annular pancreas other imaging findings|Other Imaging Findings]] | [[Annular pancreas other diagnostic studies|Other Diagnostic Studies]]


*ERCP: An aberrant pancreatic duct communicating with the main pancreatic duct and encircling the duodenum.
==Treatment==
*CT or MR images may show normal pancreatic tissue, with or without a small pancreatic duct, encircling the duodenum.
[[Annular pancreas medical therapy|Medical Therapy]] | [[Annular pancreas surgery|Surgery]] | [[Annular pancreas prevention|Prevention]] | [[Annular pancreas cost-effectiveness of therapy|Cost-Effectiveness of Therapy]] | [[Annular pancreas future or investigational therapies|Future or Investigational Therapies]]
*Upper GI serier: Narrowing of the second portion of the duodenum.
==Case Studies==
[[Annular pancreas case study one|Case #1]]


==Treatment==
==Related Chapters==
Treatment usually is bypassing the obstructed segment of dudenum by duodeno-doudenostomy. Another approach is [[laparoscopic]] gastrojejunostomy.<ref name="pmid16494188">{{cite journal |author=De Ugarte DA, Dutson EP, Hiyama DT |title=Annular pancreas in the adult: management with laparoscopic gastrojejunostomy |journal=The American surgeon |volume=72 |issue=1 |pages=71–3 |year=2006 |pmid=16494188 |doi=}}</ref>


==References==
* [[Anomalous pancreaticobiliary junction]]
{{Reflist|2}}
* [[Pancreas divisum]]


==External Links==
==External Links==
*[http://goldminer.arrs.org/search.php?query=Annular%20pancreas Goldminer: Annular pancreas]
*[http://goldminer.arrs.org/search.php?query=Annular%20pancreas Goldminer: Annular pancreas]


{{SIB}}
{{Congenital malformations and deformations of digestive system}}
{{Congenital malformations and deformations of digestive system}}
[[Category:Diseases]]
[[Category:Gastroenterology]]
[[pl:Trzustka obrączkowata]]
[[pl:Trzustka obrączkowata]]


{{WikiDoc Help Menu}}
{{WikiDoc Help Menu}}
{{WikiDoc Sources}}
{{WikiDoc Sources}}
[[Category:Disease]]
[[Category:Congenital disorders]]
[[Category:Gastroenterology]]
[[Category:Surgery]]

Latest revision as of 19:30, 3 April 2013

For patient information page on this topic, click here.

Annular Pancreas Microchapters

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Overview

Historical Perspective

Pathophysiology

Causes

Differentiating Annular Pancreas from other Diseases

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms

Physical Examination

Laboratory Findings

X Ray

CT

MRI

Echocardiography or Ultrasound

Other Imaging Findings

Other Diagnostic Studies

Treatment

Medical Therapy

Surgery

Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Historical Perspective

Pathophysiology

Causes

Differentiating Annular Pancreas from other Diseases

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms | Physical Examination | Laboratory Findings | X Ray | CT | MRI | Echocardiography or Ultrasound | Other Imaging Findings | Other Diagnostic Studies

Treatment

Medical Therapy | Surgery | Prevention | Cost-Effectiveness of Therapy | Future or Investigational Therapies

Case Studies

Case #1

Related Chapters

External Links

Template:Congenital malformations and deformations of digestive system


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