We describe two women presenting with cortico-basal syndrome (CBS) and upper motor neuron-motor neuron disease (UMN-MND), respectively, both with high-titre GAD-Abs in serum and CSF. Both patients showed progressive motor impairment with elevated NFL levels. IVIg therapy was administered without meaningful clinical benefit, suggesting neurodegeneration as the primary phenotypic driver.
Divergent presentations of anti-GAD autoimmunity: a comparative analysis of two neurodegenerative cases
Sorarù, Gianni;Antonini, Angelo
2026
Abstract
We describe two women presenting with cortico-basal syndrome (CBS) and upper motor neuron-motor neuron disease (UMN-MND), respectively, both with high-titre GAD-Abs in serum and CSF. Both patients showed progressive motor impairment with elevated NFL levels. IVIg therapy was administered without meaningful clinical benefit, suggesting neurodegeneration as the primary phenotypic driver.
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