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- diffuse Lewy body disease
- ghost story
- posterior cortical atrophy
- “Toh-no” folktales
- Toh-no Monogatari
- visual hallucination
Patients with Parkinson’s disease (PD), diffuse Lewy body disease (DLBD), or dementia with Lewy body disease (DLB) unaccompanied by paranoia, delusions, REM sleep behaviour disorder, or an obvious sleep problem sometimes report experiencing extremely vivid visual hallucinations (VH) of ghosts or monsters.1,2 Here we describe two VH experienced by a patient with progressive posterior cortical atrophy (PCA) which are similar to Japanese folktales and personal ghost stories.
The patient was a 60 year old man who complained that he had begun to see ghosts frequently. He noted difficulty in writing when he was 57 years old because he could not remember Japanese characters well, and this was accompanied by severe insomnia. He frequently had VH both during the day and at night. Two typical hallucinations are described below.
(1) The patient was at home when suddenly six people broke into his living room and started cooking silently. He asked them why they had come and what they were doing, but no one answered. He questioned them repeatedly and tried to tap one on the shoulder, but as soon as his hand touched the ghost’s shoulder, they all vanished instantaneously.
(2) One night, when the patient went to the toilet, he found his wife lying …
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