CDKN2A and meningioma: Of note, other common pathological relevant genes of meningiomas, including AKT1 (n = 3; 8%), CDKN2A (n = 2; 5%), SMO (n = 0; 0%), SUFU (n = 0; 0%), POLR2A (n = 6; 16%), TRAF7 (n = 1; 3%), and SMARCB1 (n = 2; 5%), were detected as well.