Intestinal Behçet’s disease appearing during treatment with adalimumab in a patient with ankylosing spondylitis

Figure 1 A colonoscopy on admission revealed a large, deep, well-demarcated ulcer with exudate, mucosal edema and erythema at the terminal ileum (A-C). On follow-up colonoscopy at 36 mo, the ulcer at the terminal ileum was replaced by normal mucosa (D-F) with complete mucosal healing.