Unusual neuroimaging in superficial siderosis

Superficial CNS siderosis from bleeding into the subarachnoid space causes sensorineural hearing loss and cerebellar ataxia.1 Spinal origins of superficial siderosis are rare but can include nerve root pathology.2 A 42-year-old man presented with an 8-year history of gait difficulty, dysarthria, and hearing loss. Past history was remarkable for a motor vehicle accident at age 10. Abnormalities on neurologic examination included decreased hearing, dysarthria, positive Babinski, and a wide-based …