ABSTRACT
The association of chromosomal imbalance and neurological abnormalities is well known. These chromosomal abnormalities may indicate that chromosomal sites where atypical neurological characteristics could be mapped. The purpose of our study was to search for cytogenetic abnormalities in patients with juvenile myoclonic epilepsy. This work was carried out on fifteen patients presenting to Epilepsy Centerof Neurology Department of Alexandria Main University Hospital. The age of juvenile myoclonic patients ranged from 16 to 38 years. Ten patients have myoclonic and generalized Tonic-Clonic seizures, 3 patients have myoclonic, absences, and generalized tonic-clonic seizures, and 2 patients have myoclonic seizures only. All patients were cytogenetically normal as all of them had normal karyotypes