Fig. 3From: Ulcerative colitis successfully treated with vedolizumab in the presence of comorbid opportunistic infections: a case reportColonoscopy findings 19Â days after PSL discontinuation. Colonoscopy 19Â days after PSL discontinuation showed worsening findings with ulcers in the descending and sigmoid colon. CMV immunohistochemistry of the colonic mucosa became negative. a Transverse colon and b descending colon. CMV cytomegalovirus, PSL prednisoloneBack to article page