Inflammatory bowel disease (IBD) comprises immunologically mediated diseases characterized by a costly chronic course and frequent remissions and relapses [1]. Crohn's disease (CD) and ulcerative colitis (UC) are the two main forms of IBD [2,3]. Crohn's disease is characterized by transmural inflammation and lesions, chronic diarrhea and weight loss, a tendency to form intestinal fibrotic strictures and fistulas and several extraintestinal manifestations [2]. Ulcerative colitis presents with mucosal ulceration, rectal bleeding, diarrhea, abdominal cramps, urgency or tenesmus, and fever [3].
