Teaching NeuroImages: Acute tetraparesis: Mind the brain.

Teaching neuroimages: neuroradiologic findings in pontine and extrapontine myelinolysis: clue for the pathogenesis?

A 58-year-old woman presented with subacute onset of tetraparesis, anarthria, and dysphagia after rapid correction of hyponatremia caused by repeated vomiting. Brain MRI showed pontine and extrapontine lesions typical for the osmotic demyelination syndrome (figure, A and B). The pontine lesion showed nonhomogeneous contrast enhancement (figure, C), which diminished after 15 days (figure, D). Ba...

Teaching neuroimages: manganese neurotoxicity of the basal ganglia and thalamus.

A 27-year-old man with cholestasis presented with 4 weeks of progressive spastic quadriparesis and hypophonia. MRI revealed T2/fluid-attenuated inversion recovery hyperintensities in the basal ganglia and thalamus (figure 1). He was treated with IV methylprednisolone for acute disseminated encephalomyelitis. His condition worsened. MRI 4 weeks later showed larger symmetric hyperintensities in t...

Teaching NeuroImages: isolated cervical spinal cord cysticercosis.

A 23-year-old Brazilian man, a farmer in a rural area of Minas Gerais State, complained of an 8-month history of neck pain and upper-limb weakness. Flaccid tetraparesis, global hyperreflexia, and pyramidal signs were present. Cranial CT and brain MRI were normal. Spinal cord MRI showed an intramedullary tumoral lesion, extending from C3 to C5 vertebral bodies, with a cystic appearance (figure 1...

Teaching neuroimages: fungus in the brain: coccidioidomycosis meningoencephalitis.

Acute tetraparesis secondary to bilateral precentral gyral cerebral ischemia: a case report

INTRODUCTION Sudden tetraparesis represents a neurological emergency and is most often caused by traumatic spinal cord injury, spinal epidural bleeding or brainstem ischemia and less frequently by medial disc herniation or spinal ischemia. CASE PRESENTATION Here we report the rare case of an 82-year-old Caucasian man who developed severe tetraparesis four days after radical cystoprostatectomy...