Behcet was a Turkish dermatologist who first described the triad of relapsing iridocyclitis with recurrent oral and genital ulcerations in 1937. The gastrointestinal manifestations of Behcet's disease (BD) have become recognized as a distinctive type of Behcet's syndrome called intestinal Behcet's syndrome. We describe a rare case of Behçet's disease with rectal ulcer and discuss the difficulties in making a differential diagnosis between Behçet's disease and the inflammatory bowel diseases.

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