ADPRS and neurodegeneration, childhood-onset, stress-induced, with variable ataxia and seizures: <i>ADPRHL2</i> gene mutations have been demonstrated as the cause of stress-induced childhood-onset neurodegeneration with variable ataxia and seizures (CONDSIAS), an autosomal recessive genetic disorder characterized by an abnormal gait, intellectual disability, seizures, ataxia, other nervous system degenerative diseases, and axonal sensorimotor neuropathy.