A rare case of epiploic appendagitis in a patient affected by ulcerative colitis on vedolizumab therapy

Introduction Epiploic appendagitis(EA)is an acute inflammation of the pedunculated mesenteric fat attached to the colonic surface,distinguished into two forms:primary EA,seemingly elicited by local ischaemic factors;and secondary EA(SEA),elicited by the inflammation of the adjacent organs,with diverticulitis being the most common trigger[1].Few case series have described the association between SEA and inflammatory bowel disease(IBD);however,information about clinical,laboratory and imaging findings,outcomes,and the impact of IBD-specific therapy were not reported.We first report the case of a woman affected by ulcerative colitis(UC)who developed a SEA during vedolizumab therapy(Figure 1A).