In this study, a total of 190 meningioma samples was collected in our cohort including 128 WHO grade I, 37 WHO grade II and 25 WHO grade III, with Ki-67 was highly expressed in 17.97% (23/128) of WHO grade I, 51.35% (19/37) of WHO grade II and 88.00% (22/25) of WHO grade III meningioma (Fig. 1A, Tables 1 and 2). Here, MKI67 is linked to meningioma.