Phenotype details |
Paroxymal opisthotonus, DD, early-onset intractable epilepsy, generalized tonic-clonic seizures, Status epilepticus, myoclonic seizures, delayed psychomotor development, hypotonia, opisthotonus, and dysmorphism. Refractory partial and secondary generalized tonic-clonic or myoclonic seizures since age of 6 m. Mild dysmorphism (wide-set eyes, depressed nasal bridge, short anteverted nose.) Normal ALP level. Normal brain MRI. No microcephaly, bone deformity or joint contracture. |