<unk>  <unk>  is an inflammatory condition of unknown etiology primarily affecting the gastrointestinal (GI) tract from mouth to perianal region, with specific clinical and pathological features characterized by focal, asymmetric, transmural, and occasionally, granulomatous inflammation and with a potential to cause systemic and extraintestinal complications.
Crohn's disease
Irritable bowel syndrome
Ulcerative colitis
Tropical sprue
Inflammatory bowel disease
Allergic colitis
Drug-induced colitis
Celiac disease