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Corticobasal degeneration.

W R Gibb¹, P J Luthert, C D Marsden

¹Department of Neuropathology, National Hospitals for Nervous Diseases, Maida Vale.

Brain : a Journal of Neurology

|October 1, 1989

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Corticobasal degeneration (CBD) presents uniquely, differing from Steele-Richardson-Olszewski syndrome and Pick's disease. Pathological findings reveal distinct neuronal inclusions specific to CBD.

Area of Science:

Neuroscience
Neuropathology

Background:

Corticobasal degeneration (CBD) is a progressive neurodegenerative disorder.
Clinical presentation can mimic other conditions like Steele-Richardson-Olszewski syndrome and Pick's disease.

Observation:

Three patients with CBD exhibited focal dystonia, alien hand sign, or akinetic-rigid syndrome.
Neurological deficits included supranuclear gaze palsy, parkinsonism, and mild cerebellar signs.
Pathological findings revealed frontoparietal atrophy, cortical cell loss, gliosis, and unique corticobasal inclusions.

Findings:

CBD shares some pathological features with Pick's disease but lacks significant hippocampal involvement or Pick bodies.
Neuronal loss was observed in the thalamus, basal ganglia, and brainstem nuclei.

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Substantia nigra inclusions, termed corticobasal inclusions, were distinct from Lewy bodies and neurofibrillary tangles.

Implications:

The unique pathological features, particularly corticobasal inclusions, support CBD as a distinct clinicopathological entity.
Understanding CBD's unique pathology is crucial for accurate diagnosis and differentiating it from similar neurodegenerative diseases.
Further research into the molecular basis of corticobasal inclusions may offer therapeutic targets.