case_images: PMC6441522_01
case_images: Initial colonoscopy findings showing mass-like lesion at the ileocecal valve (a). Biopsies of the ileocecal valve mass lesion demonstrating ischemic colitis ((b), original magnification x40). Background colonic biopsies demonstrating increase in intraepithelial lymphocytes, expansion of the lamina propria, and surface epithelial damage consistent with incidental lymphocytic colitis ((c), H&E original magnification x200). Follow-up colonoscopic image of ileocecal valve with complete resolution of the mass-like lesion (d).
case_images: CRIPA2019-8927872.001.jpg
case_images: PMC6441522_01_CRIPA2019-8927872.001.jpg
case_images: fig1
case_images: On colonoscopy, a mass-like lesion was identified at the ileocecal valve (Figure 1(a)). The biopsies demonstrated hyalinized lamina propria, atrophic crypts, ulceration, and active inflammation, indicative of IC (Figure 1(b)). The random colon biopsies histologically demonstrated features of lymphocytic colitis (Figure 1(c)). The procedure revealed complete resolution of the mass-like lesion at the ileocecal valve with no signs of colitis (Figure 1(d)).