WT1 and astrocytoma (excluding glioblastoma): This was in league with other studies reporting a significant increase in mean WT1 score across astrocytoma grades (Hashiba et al., 2007; Mahzouni and Meghdadi, 2012; Bassam et al., 2014; Oji et al., 2016; Camacho-Urkaray et al., 2018; Kusum and Ramita, 2019; Manocha and Jain, 2019), with a frequent assignment of higher WT1 scores to grade IV tumors.