Fast-track neuropathological screening for neurodegenerative diseases

Area of Science:

• Neuropathology
• Neurodegenerative diseases
• Prion disease diagnostics

Background:

• Postmortem diagnosis of neurodegenerative diseases is resource-intensive.
• Current methods require extensive brain sampling and histopathological evaluation.
• Prion disease exclusion is a critical, time-consuming step.

Purpose of the Study:

• To develop a fast-track histopathological procedure for prompt preliminary diagnosis.
• To improve the efficiency of brain autopsy for suspected neurodegenerative disease.
• To enable rapid feedback to clinicians regarding neuropathological findings.

Main Methods:

• Screening of two brain regions (frontal cortex and cerebellum).
• Utilized H&E staining and six immunohistochemical stains.
• Compared fast-track diagnosis with final diagnosis in 133 brain donors.

Main Results:

• Over 96% concordance between fast-track and final neuropathological diagnoses.
• Identified four cases of prion disease without prior clinical suspicion.
• Demonstrated reliability of the fast-track approach for initial diagnosis.

Conclusions:

• The fast-track screening of two brain regions provides a reliable tentative diagnosis.
• This method allows for prompt feedback to physicians for neurodegenerative disease cases.
• Further comprehensive histological work-up is essential for accurate staging and co-pathology assessment.