Although results showed some degree of correlation (R-value = 0.069–0.284; p-value = 0.111–0.606) of these genes in the other three medulloblastoma subgroups, none of these medulloblastoma subgroups showed a significant correlation between PRMT5 and MYC expression (Additional file 1: Figure S1). The gene discussed is MYC; the disease is medulloblastoma.