Monarch Disease Ontology term MONDO_0009698 (Unverricht-Lundborg syndrome) can be described as follows. Unverricht-Lundborg disease (ULD) is a rare progressive myoclonic epilepsy disorder characterized by action- and stimulus-sensitive myoclonus, and tonic-clonic seizures with ataxia, but with only a mild cognitive decline over time. Also known as: PME type 1, ULD, Unverricht - Lundborg disease, Unverricht's disease, Unverricht-Lundborg disease, epilepsy, progressive myoclonic 1A (Unverricht and Lundborg), progressive myoclonic epilepsy type 1, progressive myoclonus epilepsy type 1.