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The types of endoscopic ulcers in gastrointestinal Behçet's syndrome. (A) Multiple oval/round ulcers; (B) Geographic type ulcer; (C) Oval shaped ulcer; (D) Aphtous ulcer; (E) Oval shaped ulcer with elevated edges and hematin spots on the center; (F) Oval shaped ulcer at anostomosis; (G) Oval shaped large ulcer (H) Recurrent perforations following right hemicolectomy, possibly due to a pathergy phenomenon following surgical trauma.
