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Table 3 Comparison of active inflammation and fibrostenotic disease on MRE

From: Small bowel MR enterography: problem solving in Crohn’s disease

Features on MRE Active inflammation Fibrostenotic disease
Mural thickness Moderate Mild
Mural enhancement Avid Mild
Stratified mural enhancement Yes Variable
Mural oedema Yes Mild/absent
Increased mesenteric vascularity/adenopathy Yes No
Mesenteric phlegmon, abscess Present in penetrating disease No
Fistulae Present in penetrating disease Sometimes present
Fibrofatty proliferation Sometimes present Yes