Superficial siderosis of the central nervous system manifested with seizures.

Abstract Superficial siderosis of the central nervous system (CNS) is caused by repeated hemorrhage into the subarachnoid space with resultant hemosiderin deposition in the subpial layers of the brain and spinal cord. Progressive ataxia and hearing impairment are the most common manifestations of the disorder. We describe a male patient admitted to our hospital for recurrent seizures over the past 3 months. He was diagnosed eventually as having superficial siderosis of the CNS through brain MRI; however, he presented with only mild hearing impairment without any cerebellar deficits. Seizures can be the major presentation of the superficial siderosis.