“…13 Although some cases show classic histological features, such as strictures, non-necrotizing granulomas, transmural lymphoid aggregates, segmental and patchy disease, fissures, sinus tracts and fistulas, and perianal disease, others do not. 5,[18][19][20][21] In fact, some patients with isolated colonic Crohn's disease show few, if any, classic gross and microscopic features of this disorder, as outlined above, and, thus, resemble ulcerative colitis clinically and histologically. [19][20][21] These cases have been termed 'superficial Crohn's disease' or 'ulcerative colitislike Crohn's disease'.…”