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Diagnostic criteria

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

The diagnostic criteria for dementia with Lewy bodies (BLB) are:

  • there must be a progressive cognitive decline

  • two of the following must be present:
    • marked fluctuations in attention and alertness
    • recurrent visual hallucinations
    • parkinsonism

Features which support a diagnosis of DLB include:

  • recurrent falls
  • transient losses of consciousness
  • neuroleptic sensitivity
  • complex delusions
  • hallucinations in modalities other than vision

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