Where does microperforation typically occur in Crohn disease?

Updated: Jul 26, 2019
  • Author: Leyla J Ghazi, MD; Chief Editor: Praveen K Roy, MD, AGAF  more...
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Microperforation typically occurs into other segments of bowel, leading to fistulae, or into areas such as the retroperitoneum, resulting in abscess formation. Perianal and perirectal fistulae occur in approximately 20-23% of individuals. Other complications of fistulizing disease include enterovesical, enterocutaneous, and rectovaginal fistulae, as well as extension into muscle in severe progressive cases.

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