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ileal diverticulum

 

Definition: a remnant of the proximal part of the yolk stalk within the embryo that arises as a fingerlike diverticulum, 3–6 cm long, from the antimesenteric border of the ileum between 40 and 50 cm from the ileocecal junction; it may be attached to the umbilicus. If its mucosa includes gastric tissue, peptic ulceration and bleeding may result.

Synonym(s): Meckel diverticulum

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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