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Delusional misidentification, AIDS and the right hemisphere.
1Department of Psychiatry, Charing Cross Hospital, London.
Summary
This study details a patient with Acquired Immunodeficiency Syndrome (AIDS) who experienced Capgras syndrome due to an opportunistic infection. Findings suggest that visuospatial deficits, particularly in facial recognition, may cause this delusion.
Area of Science:
- Neuroscience
- Psychiatry
- Infectious Diseases
Background:
- Capgras syndrome is a rare delusional misidentification, often associated with neurological or psychiatric conditions.
- Opportunistic infections in patients with Acquired Immunodeficiency Syndrome (AIDS) can lead to complex neuropsychiatric manifestations.
Observation:
- A patient diagnosed with AIDS presented with an acute confusional state and developed Capgras syndrome.
- Neuropsychological assessments indicated dysfunction in the non-dominant hemisphere, specifically affecting facial recognition abilities.
Findings:
- Serial computed tomography (CT) scans revealed a lesion in the right parietal lobe.
- The lesion resolved concurrently with the improvement of the patient's psychosis and Capgras syndrome.
Implications:
- These results support the hypothesis linking visuospatial processing deficits to the etiology of Capgras syndrome.
- The case highlights the importance of considering opportunistic infections as a cause of neuropsychiatric symptoms in AIDS patients.