Delusional misidentification in association with cortical lewy body disease—a case report and overview of possible mechanisms
✍ Scribed by Dr. Robert C. Baldwin; Julie S. Snowden; David M. A. Mann
- Book ID
- 102846003
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 664 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0885-6230
No coin nor oath required. For personal study only.
✦ Synopsis
A patient presented with a Capgras delusion and reduplication of place. At postmortem there were numerous cortical Lewy bodies. This is believed to be the first such case in which these phenomena have been observed in proven cortical Lewy body disease. The clinical and diagnostic features are described and a brief overview of possible explanations for the phenomena discussed. KEY WORDS-dementia; delusion; Lewy body; misidentification; Capgras Lewy body disease (LBD), in which Lewy bodies are distributed widely in the subcortex, limbic system and cortical structures, is a relatively recently described entity and is reputedly a common cause of dementia in the senium (Perry et al., 1989). Neuropsychiatric phenomena, which may be early and prominent features, have been described in approximately a third of recent reports Gibb et al., 19871, including paranoid ideation, visual hallucinations, depression and mood lability.
We report a patient with LBD confirmed at autopsy who had two types of delusional misidentification. These were Capgras syndrome and a reduplication of place, both of which occurred as early, prominent symptoms.