In meningioma sample, NT-proBNP correlated with decreased psychomotor speed (Spearman rho = 0.38, p < 0.01), mental flexibility (Spearman rho = 0.33, p < 0.01), worse cumulative learning (Spearman rho = −0.27, p < 0.05), and delayed recall (Spearman rho = 0.30, p < 0.01). Here, NPPB is linked to meningioma.