Related Experiment Videos
Non-Alzheimer fronto-temporal degenerative dementia. A neurobehavioral and pathologic study
C M Filley1, B K Kleinschmidt-De Masters, K F Gross
1Department of Neurology, University of Colorado Health Science Center, Denver 80262.
Clinical Neuropathology
|May 1, 1994
Summary
Fronto-temporal degeneration (FTD) presents distinct patterns of brain atrophy compared to Alzheimer's disease. Early neurobehavioral assessment aids in differentiating FTD subtypes for research and clinical studies.
Area of Science:
- Neurology
- Neuroscience
- Pathology
Background:
- Alzheimer's disease (AD) primarily impacts the limbic system and neocortex.
- Fronto-temporal degeneration (FTD) is characterized by damage to the frontal and temporal neocortex.
- Lobar atrophy, a hallmark of FTD, was first described by Arnold Pick.
Purpose of the Study:
- To present autopsy-documented cases of non-AD fronto-temporal degeneration.
- To correlate neurobehavioral assessments with pathological findings in FTD.
- To propose a classification system for FTD subgroups.
Main Methods:
- Autopsy-documented examination of four non-AD FTD cases.
- Detailed neurobehavioral and neuropsychological assessments.
- Histopathological analysis including identification of Pick bodies.
Main Results:
- Three patients exhibited personality changes; one had non-fluent aphasia, with initially preserved memory.
- Autopsies revealed varied patterns: classic Pick's disease, generalized Pick's with caudate/substantia nigra degeneration, and temporal degeneration without Pick bodies.
- Hippocampal structures were relatively spared across all cases.
Conclusions:
- FTD subgroups should be categorized by microscopic features and atrophy patterns.
- Separating FTD subgroups is crucial for neurochemical and genetic research.
- Early clinical and neuropsychological evaluations are vital for distinguishing FTD from AD, aiding clinical trials.