Monarch Disease Ontology id MONDO_0100016 (early-onset generalized dystonia) is a generalized isolated dystonia characterized by early-onset, which may be clinically indistinguishable from DYT-TOR1A and may be the most common cause of early-onset generalized dystonia, at least outside the Askenazi Jewish population. Also known as: DYT-KMT2B, early-onset, generalised dystonia with mild syndromic features, early-onset, generalized dystonia with mild syndromic features.