Obscure GI bleeding, defined as bleeding from the GI tract that persists or recurs without an obvious etiology after oesophagogastroduodenoscopy (OGD), colonoscopy, and radiologic evaluation of the small bowel such as small bowel follow-through or enteroclysis, though in practice, patients are typically diagnosed with obscure bleeding based on upper endoscopy and colonoscopy results alone without undergoing radiologic procedures. Obscure gastrointestinal bleeding could be overt or obscure based on the presence or absence of clinically evident bleeding.

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Crohn’s Disease is a type of inflammatory bowel disease. This is an inflammatory condition of unknown etiology that can affect any portion of the gastrointestinal tract from the mouth to the perianal area. The most common affected regions are the end of the small bowel (the ileum) and the beginning of colon.

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Small Bowel Capsule Endoscopy