Tags: Disease.
Northern epilepsy syndrome or progressive epilepsy with mental retardation (EPMR) is a subtype of neuronal ceroid lipofuscinosis and a rare disease that is regarded as a Finnish heritage disease. Unlike most Finnish heritage diseases this syndrome has been reported only in Finland.The disease is characterized by seizures in early childhood that progressively get worse until after puberty. Once the onset of seizures occurs mental degradation is seen.