Cerebellar ataxia and "occult neuroblastoma" without opsoclonus.
D002524:Cerebellar Ataxia / Q000175:diagnosis*; D002675:Child, Preschool; D005133:Eye Movements; D005729:Ganglioneuroma / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000175:diagnosis; D009447:Neuroblastoma / Q000175:diagnosis