Frequency and nature of incidental extra-enteric lesions found on magnetic resonance enterography (MR-E) in patients with inflammatory bowel diseases (IBD).

The most common highly significant lesions were extraintestinal tumors ( figure 1 ), metastases or masses (n = 72), abscesses (n = 63), pleural or pericardial effusions (n = 13) ( figure 2 ) and hydronephrosis or ureteral obstruction (n = 16) ( tables 4 – 6 ). 83 major clinical findings occurred in 73 of the 710 patients with IBD (10.3%) ( table 4 ).

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