The Spectrum of Imaging Features Regarding Crohn’s Disease Complications with CT and MR Enterography

Abstract

Crohn's disease is a chronic inflammatory disorder of the gastrointestinal tract that presents significant diagnostic challenges due to its varied manifestations and potential complications. Accurate and timely imaging is essential for assessing disease activity and managing mural and extra-intestinal abnormalities effectively. CT and MR enterography are crucial in diagnosing and evaluating the complications of Crohn’s disease, providing detailed insights into disease extent while offering comprehensive anatomical and functional information non-invasively. This pictorial essay illustrates the spectrum of imaging features associated with Crohn’s disease complications, from segmental mural hyperenhancement and strictures to penetrating manifestations such as fistulas and abscesses. Additional focus is given in identifying Crohn's-related appendicitis, post-surgical recurrence, and the rare development of carcinoma. By understanding the distinctive imaging features and procedural nuances of CT and MR enterography, radiologists can better tailor therapeutic strategies, ultimately improving patient outcomes.