Internal hernia: Difference between revisions

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   Caption        = [http://www.radswiki.net Image courtesy of RadsWiki]|
   Caption        = Computed Tomography: Internal hernia [http://www.radswiki.net Image courtesy of RadsWiki]|
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'''Contributors:'''  [[User:zorkun|Cafer Zorkun]] M.D., PhD.
'''Contributors:'''  [[User:zorkun|Cafer Zorkun]] M.D., PhD.


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==Overview==
==Overview==
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{{Symptoms and signs}}     
{{Symptoms and signs}}     
{{SIB}}   
   
 


[[Category:Signs and symptoms]]
[[Category:Gastroenterology]]
[[Category:Gastroenterology]]
[[Category:Surgery]]
[[Category:Surgery]]

Latest revision as of 15:23, 9 June 2015

Internal hernia
Computed Tomography: Internal hernia Image courtesy of RadsWiki

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

Contributors: Cafer Zorkun M.D., PhD.


Overview

  • Protrusion of the viscera through the peritoneum or mesentery and into a compartment in the abdominal cavity. [1] [2]
  • Most common presentation is an acute intestinal obstruction of small bowel loops that develops through normal or abnormal apertures.
  • Responsible hernial orifices are usually preexisting anatomic structures, such as foramina, recesses, and fossae.
  • Pathologic defects of the mesentery and visceral peritoneum, which are caused by congenital mechanisms, surgery, trauma, inflammation, and circulation, are also potential herniation orifices.

Types of internal hernias

  • Foramen of Winslow
  • Paraduodenal
  • Transmesenteric
  • Transomental
  • Pericecal
  • Sigmoid mesocolon
  • Supravesical
  • Pelvic hernias

Diagnostic Findings

Computed Tomography

  • Encapsulation of distended bowel loops with an abnormal location, arrangement or crowding of small-bowel loops within the hernial sac, evidence of obstruction with segmental dilatation and stasis.
  • Mesenteric vessel abnormalities, with engorgement, crowding, twisting, and stretching of these vessels

Patient #1: Patient presents with intermittent abdominal pain. The patient had a history of gastric bypass

Images courtesy of RadsWiki

References

  1. Martin, Lucie C., Merkle, Elmar M., Thompson, William M. Review of Internal Hernias: Radiographic and Clinical Findings. Am. J. Roentgenol. 2006 186: 703-717.
  2. Nobuyuki Takeyama, Takehiko Gokan, Yoshimitsu Ohgiya, Shuichi Satoh, Takashi Hashizume, Kiyoshi Hataya, Hiroshi Kushiro, Makoto Nakanishi, Mitsuo Kusano, and Hirotsugu Munechika. CT of Internal Hernias. RadioGraphics 2005 25: 997-1015.

External Links

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