right frontal lobe meningiomaright frontal lobe tumor prognosisfrontal lobe meningioma surgerymeningioma brain tumor frontal lobeleft frontal lobe seizuresfrontal lobe tumour prognosisglioblastoma frontal lobe prognosisfrontal lobe cancer survival ratestemporal lobe epilepsyfrontal lobe injuriestemporal lobe epilepsy seizuresbrain tumors classification