Mondo Description Progressive epilepsy-intellectual deficit, Finnish type (also known as Northern epilepsy) is a subtype of neuronal ceroid lipofuscinosis (NCL) characterized by seizures, progressive decline of intellectual capacities and variable loss of vision.

Uniprot Description A form of neuronal ceroid lipofuscinosis clinically characterized by epilepsy that presents between 5 and 10 years of age with frequent tonic-clonic seizures followed by progressive mental retardation. Visual loss is not a prominent feature. Intracellular accumulation of autofluorescent material results in curvilinear and granular profiles on ultrastructural analysis.