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Area of Science:

  • Neurology
  • Pathology
  • Infectious Diseases

Background:

  • Prion diseases are fatal, rapidly progressive neurodegenerative disorders.
  • Caused by misfolded prion proteins, they are transmissible under specific circumstances.
  • Etiologies include sporadic (85%), genetic (10-15%), and acquired (<1%) forms.

Purpose of the Study:

  • To provide background on prion diseases.
  • To focus on the diagnostic tools for prion disease.
  • To review recent advancements in diagnostic accuracy.

Main Methods:

  • Review of existing literature on prion disease diagnosis.
  • Analysis of diagnostic utility of brain MRI.
  • Evaluation of cerebrospinal fluid real-time quaking-induced conversion (RT-QuIC) assay.

Main Results:

  • Neuropathologic examination remains the definitive diagnostic method.
  • Brain MRI and CSF RT-QuIC significantly enhance antemortem diagnostic accuracy.
  • Prion diseases exhibit varied clinical, pathological, and diagnostic profiles.

Conclusions:

  • Brain MRI and CSF RT-QuIC are crucial for evaluating suspected prion disease.
  • While definitive diagnosis requires neuropathology, these tools improve early detection.
  • Standard precautions suffice for routine patient care; specialized guidelines apply to CNS tissue handling.