No Age Sex OU GU A PT U PPE EN Symptom Colonoscopy Perforation 1 18 M + + + + - - + Hematochesia Colonic ulcer Ileum 2 26 M + + - + + + - Hematochesia Ileal-colonic ulcer Ileum 3 56 M + + - - + + + Hematochesia Colonic ulcer Ascending colon 4 53 F + + - + - + - Hematochesia Colonic ulcer None 5 25 F + + + + - + - Anemia Ileal-colonic ulcer None 6 52 F + + - + + + - Hematochesia Colonic ulcer None 7 69 M + + - + + + + Anemia Colonic ulcer None 8 34 M + + + + - + - Anemia Ileal-colonic ulcer None

Table 1: Demographics of the patients who had ulcers as a finding of colonoscopic evaluation OU=Oral ulceration; GU = Genital ulceration; A=Arthritis; PT=Pathergy test; U=Uveitis; PPE=Papulopustular eruptions; EN=Erythema nodosum