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Corticobasal degeneration.

Ana M Grijalvo-Perez1, Irene Litvan1

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Corticobasal degeneration (CBD) is a challenging parkinsonian syndrome with varied symptoms that can mimic other neurodegenerative diseases like Alzheimer disease (AD). Definitive diagnosis requires autopsy, and no disease-modifying therapies exist, though research is ongoing.

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Area of Science:

  • Neuroscience
  • Neurology

Background:

  • Corticobasal degeneration (CBD) is an atypical parkinsonian syndrome.
  • CBD presents with diverse phenotypes, making antemortem diagnosis difficult.
  • Other neurodegenerative disorders, such as Alzheimer disease (AD), can mimic CBD.

Purpose of the Study:

  • To review the diagnostic challenges of corticobasal degeneration.
  • To discuss the current understanding of CBD etiology and clinical presentation.
  • To highlight the need for definitive diagnostic criteria and therapies.

Main Methods:

  • Review of current literature on corticobasal degeneration.
  • Analysis of neuropathological and genetic evidence.
  • Examination of clinical phenotypes and diagnostic criteria.

Main Results:

  • Corticobasal degeneration (CBD) diagnosis is challenging due to non-specific phenotypes.
  • Microtubule-associated protein tau is implicated in CBD etiology.
  • Corticobasal syndrome, characterized by asymmetric parkinsonism and specific motor deficits, is the classic presentation.
  • New diagnostic criteria exist, but autopsy confirmation remains definitive.
  • No disease-modifying therapies are currently available for CBD.

Conclusions:

  • Corticobasal degeneration (CBD) remains difficult to diagnose antemortem.
  • Tau pathology is a key area of research for CBD.
  • Further research is crucial for developing effective treatments for corticobasal degeneration.