A pericecal internal hernia occurs at the site of a congenital or acquired defect in the cecal mesentery.
Possible pericecal recesses formed by peritoneal folds: superior ileocecal, inferior ileocecal, retrocecal, paracolic
Bowel segments affected: usually ileum
Clinical features:
(1) recurrent episodes of colicky intense right lower quadrant pain
(2) rapid progression to strangulation and ischemia
(3) symptoms of bowel obstruction
CT findings:
(1) cluster of dilated small bowel loops with a sac-like appearance posterior and lateral to the ascending colon in the right pericolic gutter
(2) convergence of engorged vessels grouped together at the entrance
(3) displacement of the ascending colon anteriorly or medially
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Specialty: Gastroenterology, Surgery, general
