Susac syndrome with a unique involvement of the thoracic spinal cord

Le résumé fourni par la source

A woman in her late 20s presented with headaches and subacute encephalopathy. MRIs showed multiple punctate subcortical and periventricular white matter hyperintensities with diffusion restriction, infratentorial lesions, leptomeningeal enhancement of the cervical spinal cord, brainstem and cerebellum and two areas of high-signal abnormality at T4 and T6 raising suspicion for multiple sclerosis or acute disseminated encephalomyelitis.Further studies and evolution of her symptoms during her hospital stay confirmed the clinical triad of encephalopathy, branch retinal artery occlusions and hearing loss pathognomonic for Susac's syndrome.While cervical spinal cord and cauda equina involvement have been reported in Susac's syndrome previously, no thoracic spinal cord involvement has been reported.We report the novel MRI finding of thoracic spinal cord involvement in Susac's syndrome. In order to avoid misdiagnosis, neurologists and neuroradiologists should be aware that any part of the spinal cord can be involved in Susac's syndrome.

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