We studied few cases of PXA (nine cases) and DNT (seven cases); this may explain why the frequencies of BRAF‐V600E mutation were lower than those reported in the literature (44.5% vs 66% for PXA/APXA and 0% vs 25% for DNT) (Chappé et al., 2013; Dougherty et al., 2010; Schindler et al., 2011). This evidence concerns the gene BRAF and pleomorphic xanthoastrocytoma.