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'Pseudo-Alzheimer's' and primary brain tumour.
  1. D. O'Mahony,
  2. J. B. Walsh,
  3. D. Coakley
  1. Department of Medicine for the Elderly, St James's Hospital, Dublin, Ireland.


    Primary brain tumour may present in the elderly purely as a dementing illness before the onset or detection of sensorimotor neurological symptoms or signs. Although neurological examination may indicate no definite signs, close attention to accepted DSM-IIIR and NINCDS-ADRDA diagnostic criteria for primary degenerative dementia and 'probable' Alzheimer's disease respectively will suggest a process other than a degenerative one. This was the case in two patients with primary brain tumour presenting clinically with dementing illness similar to but distinct from Alzheimer's disease.

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