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'Pseudo-Alzheimer's' and primary brain tumour
D O'Mahony1, J B Walsh, D Coakley
1Department of Medicine for the Elderly, St James's Hospital, Dublin, Ireland.
Postgraduate Medical Journal
|August 1, 1992
Summary
Primary brain tumors can mimic dementia in elderly patients, presenting without typical neurological signs. Careful diagnosis is crucial to differentiate these tumors from degenerative conditions like Alzheimer's disease.
Area of Science:
- Neurology
- Oncology
Background:
- Primary brain tumors can manifest with cognitive decline in elderly individuals.
- Dementia is often the initial presenting symptom, preceding sensorimotor deficits.
Observation:
- Neurological examination may not reveal definitive signs of a brain tumor.
- Patients presented with a dementing illness clinically resembling Alzheimer's disease.
Findings:
- Applying diagnostic criteria for dementia (DSM-IIIR) and Alzheimer's disease (NINCDS-ADRDA) suggested a non-degenerative cause.
- Two cases highlighted primary brain tumors presenting as a primary dementing illness.
Implications:
- Highlights the importance of considering brain tumors in the differential diagnosis of dementia in the elderly.
- Suggests that atypical presentations of dementia warrant thorough investigation beyond standard degenerative disease workups.
- Emphasizes the need for advanced neuroimaging to detect non-degenerative causes of cognitive impairment.