Sporadic Juvenile-onset primary dystonia (Q86108)

Dystonia is a disorder of involuntary muscle contractions, which often appear as abnormal postures, twisting, or repetitive muscle movements. The torso and limbs are commonly affected. As primary and sporadic, the dystonia is the only abnormality of the nervous system apart from tremor and there is no family history. Sporadic Juvenile-onset primary dystonia typically presents in childhood or adolescence.