TP53 and meningioma: Meningiomas occur either spontaneously, in patients who suffer from neurofibromatosis type 2 (NF2), Li-Fraumeni (TP53/CHEK2), Turcot, Gardener, von Hippel-Lindau (VHL), Cowden (PTEN), Gorlin (PTCH1, SUFU), Werner (LMNA) or multiple endocrine neoplasia type I (MEN1) sindroms [75,79].