In agreement with previous studies (Schittenhelm et al., 2008; Mahzouni and Meghdadi, 2012; Rauscher et al., 2014), we came across 6/57 WT1-negative tumors of different histopathologies, but others didn’t report any negativity in astrocytic tumors (Manocha and Jain, 2019). Here, WT1 is linked to astrocytic tumor.