segmental dystonia focal, segmental or multifocal dystonia adult-onset segmental dystonia 2018-05-25T20:41:39Z https://github.com/monarch-initiative/mondo/issues/7700 MONDO:0100015 an adult-onset, focal or segmental, isolated dystonia that is characterised by cervical or cranial dystonia that often begins in the fourth decade (range 7-54 years). 2024-09-01 DYT-GNAL Reason of obsoletion: out of scope - MONDO:excludeHistoricalDisease. Term to consider: - an adult-onset, focal or segmental, isolated dystonia that is characterized by cervical or cranial dystonia that often begins in the fourth decade (range 7-54 years).