DYT13 type primary dystonia is characterized by focal or segmental dystonia with cranial, cervical, or upper limb involvement. The disease is Primary dystonia, DYT13 type (Orphanet rare-disease nomenclature entry Orphanet_98807). Also known as: DYT13, Primary dystonia with mixed phenotype, Primary torsion dystonia with predominant craniocervical or upper limb onset.