Cayuela N, et al. - Here, the clinicians classify which glioblastoma multiforme (GBM) patients have a higher risk to present seizures during follow-up. To identify GBM patients at risk of suffering from seizures during follow-up, tumor location is a useful marker. In order to support the use of antiepileptic prophylaxis in a selected GBM population and to improve stratification in antiepileptic clinical trials, these outcomes may help.