Our patient was a 65-year-old right-handed woman. In August 2003, her family noticed her mild memory disturbance, and she developed delusions that someone intruded into her house, always watched her, and stole her bankbook. In March 2005, she developed auditory hallucinations that someone told her bad things. She also insisted that someone let snakes loose in her house and that someone hid himself under the stool and watched her. She was first diagnosed with schizophrenia and prescribed risperidone. At the next visit, the Mini-Mental Status Examination was administered and she scored 21/30. MRI showed mild diffuse brain atrophy, and SPECT showed right-dominant decreased rCBF in the temporoparietal lobe. Considering these results, her diagnosis was changed to early-onset Alzheimer’s disease. Donepezil was prescribed, and her psychoses were improved.
Schizophrenia-Like Psychosis and Dysfunction of the Right-Dominant Temporoparietal Lobe in Early-Onset Alzheimer’s Disease
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