Ileocolonoscopy is highly sensitive and specific for the diagnosis and treatment of patients with suspected or established inflammatory bowel disease. The procedure allows for tissue sampling and differential diagnosis, evaluation of mass lesions, and cancer surveillance.
Crohn disease is initially diagnosed on the basis of a combination of clinical, laboratory, histologic, and radiologic findings. Laboratory findings are generally nonspecific but may be helpful in supporting the diagnosis and evaluating response to treatment.
Overall, enteroclysis is reserved for complicated cases. This imaging modality is roughly as accurate as small bowel follow-through and has a shorter examination time; however, the peroral small bowel follow-through examination uses less total room and radiologist time, decreases radiation exposure, and is more tolerable for patients. Furthermore, CT enterography or MR enterography is replacing SBFT studies, as enterographic images can more accurately distinguish inflammation from fibrosis than SBFT.
Nuclear imaging studies are not considered to be the tests of choice: MRI, CT, and endoscopic examination of the mucosa for active disease are preferred.
Learn more on the workup of Crohn disease.
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Cite this: Jamie Shalkow, Cristian Puerta. Fast Five Quiz: Test Yourself on Crohn Disease - Medscape - Jan 12, 2022.