Non-progressive congenital ataxia is of two types: ataxia diplegia (with lower limb spasticity) and simple ataxia (without spasticity). Simple ataxia may be subdivided into “congenital cerebellar ataxia” (with uncoordination of voluntary movements) and “the dysequilibrium syndrome” (with lack of a sense of equilibrium or maintenance of body position in space). Studies have shown cerebellar abnormalities on imaging in only a minority of children with simple nonprogressive ataxia and …