NF1 and meningioma: Meningiomas occur with greater frequency in patients with germline mutations of genes such as type-2 neurofibromatosis (NF2) [13], type-1 neurofibromatosis (NF1, 19–24% of adolescent meningiomas) [4], type-1 multiple endocrine neoplasia (MEN1) [14], SMARCB1, LZTR1, or SMARCE1 genes [5].