| A rare genetic neurological disease with characteristics of non-progressive, variable spastic quadriparesis in multiple members of a family, in the absence of additional factors complicating pregnancy or birth (for example perinatal asphyxia, congenital infection). Additional clinical features include congenital hypotonia, intellectual disability, and developmental delay. Dysphagia, dysarthria, exotropia, nystagmus, seizures and brain atrophy with ventriculomegaly may be also present. |
