2. Study Hypothesis Crohn's Disease may be pan-enteric in nature and can affect the small bowel, the colon or both. PillCam COLON 2 may be used for visualization of both SB and colon mucosa in Crohn's Disease patients. However, bowel prep is required in order to evacuate all fecal matter prior to the exam and in order to propel the capsule and complete its traverse through the entire GI track within examination time.