PMID: 16532698Mar 15, 2006Paper

A case of left dorsomedial thalamic infarction with unilateral schizophrenia-like auditory hallucinations

Seishin shinkeigaku zasshi = Psychiatria et neurologia Japonica
Yukihiro YoshidaKikuko Yoshizawa

Abstract

We report a case of a right-handed, 73-year-old woman with auditory hallucinations lateralized to the right ear. A brain MRI revealed a small infarction in the left dorsomedial nucleus (DM) of the thalamus. The patient did not have either psychiatric or neurological prior history, and had otherwise been treated for ischemic heart disease, hypertension, and hyperlipidemia for 10 years. Two months prior to admission, she had become forgetful, and had lost her wallet several times. She concurrently began to experience auditory hallucinations in which she heard the voices of her acquaintances, or "the gods". She frequently monologized and wandered about outside following the contents of the hallucinations. Therefore, she was admitted to our institution. On admission, no apparent abnormalities were revealed by physical examinations or blood analyses. She was alert and had no aphasic symptoms. Except for memory disturbances, no neurological symptoms, including no hearing loss, were found. A brain MRI showed a small localized infarction in the left DM, but EEG findings were normal. The patient had prominent anterograde memory deficits: she hardly remembered what she had done the very same day, or the names of the doctor and hospital. ...Continue Reading

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