Strengths and limitation of the study
This is a strictly pediatric series. The main limitation of this study
is the small number of false positives, which weakens the analysis of
this group and the comparison with true positives. The PPV found in our
study is consistent to the ones described in the literature as in adults
as in children (9,10). Moreover, we performed a critical analysis of our
pitfalls (T1 hypersignal, size of the DW-MRI hypersignal), in order to
later avoid unnecessary surgery.