Gastrointestinal imaging-practical magnetic resonance imaging approach

Figure 8 Enteroenteric fistula in active Crohn’s disease. A: Coronal T2-weighted single shot fast spin echo and (B) coronal balanced steady state free precession images as well as (C) axial and (D) coronal fat-suppressed post-gadolinium 3D-GRE T1-weighted images during the (C) enteric and (D) interstitial phases. There is short-segment terminal ileal wall thickening (A and B), which shows extensive mucosal enhancement (C and D). There is also a linear tract extending from the involved segment to an adjacent ileal loop, showing increased enhancement, consistent with enteroenteric fistula (arrows, C and D). GRE: Gradient recalled echo.