INTRODUCTION
Diffusion-Weighted Magnetic Resonance Imaging (DW-MRI) has become in the
past 10 years a key element in the diagnostic management of
cholesteatoma, when otoscopy and CT are inconclusive in surgery-naive
patients or to assess post-operative recurrence or residual
cholesteatoma. However, not all DW-MRI hypersignals are cholesteatoma.
The aims of this study were first to calculate in our pediatric series
the Positive Predictive Value (PPV) of MRI with DWI sequences and then
to analyze false positives.