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Epiploic appendagitis (EA) is an uncommon, benign, self-limiting inflammatory process of the epiploic appendices. Other, older terms for the process include appendicitis epiploica and appendagitis, but these terms are used less now in order to avoid confusion with acute appendicitis.
Epiploic appendices are small, fat-filled sacs or finger-like projections along the surface of the lower colon and rectum. They may become acutely inflamed as a result of torsion (twisting) or venous thrombosis. The inflammation causes pain, often described as sharp or stabbing, located on the left, right, or central regions of the abdomen. There is sometimes nausea and vomiting. The symptoms may mimic those of acute appendicitis, diverticulitis, or cholecystitis. Initial lab studies are usually normal. EA is usually diagnosed incidentally on CT scan which is performed to exclude more serious conditions.
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