Also known as: Primary generalized tonic-clonic seizures / Seizures, Tonic-Clonic / Generalised tonic-clonic seizure / Generalized Tonic Clonic Seizures / Seizure grand mal / Generalized tonic clonic seizure / Generalised tonic-clonic seizures / Tonic-clonic Seizure / Grand mal Seizures / Centrencephalic epilepsies / Generalized tonic-clonic Seizure / Grand mal Generalized tonic-clonic seizure / Generalized Tonic-Clonic Seizures / Grand mal seizure / Grand mal epileptic seizure / Tonic-clonic seizures / Centrencephalic epilepsy / Other generalized epilepsy and epileptic syndromes / Generalised onset motor seizure / Generalized onset motor seizure / Grand mal seizure (finding) / Tonic-clonic seizure (finding) / Grand mal fit / Grand mal epileptic fit / Centrencephalic epilepsy (disorder)