Catalog

Myoclonus-dystonia

No MMS code

Link to WHO Definition

Myoclonus-dystonia – http://id.who.int/icd/entity/1047919249

Myoclonus-dystonia syndrome is characterised by bilateral, alcohol-sensitive myoclonic jerks, involving predominantly the arms, neck, and axial muscles, and relatively mild dystonia - usually torticollis and/or writer's cramp - in some patients. Onset of abnormal movements is usually in the first or second decade of life. It is often due to a mutation in the sarcoglycan gene.