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Ileocecal Fold
Digestive System

Ileocecal Fold

Plica ileocaecalis

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The ileocecal fold is a fold of peritoneum that extends from the anteroinferior surface of the terminal ileum to the anterior aspect of the mesoappendix, although it may attach to the appendix directly or the cecum (Standring, 2016).

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Key Features/Anatomical Relations

The ileocecal fold forms the anterior boundary of the inferior ileocecal recess. This recess is well developed in the young, but is usually obliterated by fat in adults (Standring, 2016).


Standring, S. (2016) Gray's Anatomy: The Anatomical Basis of Clinical Practice. Gray's Anatomy Series 41 edn.: Elsevier Limited.

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Retroperitoneal Space

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Access to the retroperitoneal space is provided through the Petits triangle that lies between the latissimus dorsi posteriorly and the external oblique anteriorly, bounded inferiorly by the iliac crest.

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