FOXC1 and meningioma: Staining of dura from 4 patients and 9 meningiomas (4 grade I, 3 grade II, 2 grade III) showed a statistically significant difference in the percentage of cells expressing FOXC1 (Figures 5 and 6, dura vs I/II/III P < .001, I vs II P < .05, I vs II/III NS).