Pitfalls in abdominal diffusion-weighted imaging – How specific is restricted water diffusion for malignancy?

Purpose As DWI is increasingly implemented into routine protocols of abdominal MRI, positive findings both in expected as in unexpected locations become more common and might constitute diagnostic problems especially in patients with suspected benign disease. The aim of our retrospective study was to investigate the potential pitfalls of false positive findings in abdominal DWI by identifying benign lesions that have restricted diffusion and therefore might mimic malignant tumors.