Persisting childish behavior after bilateral thalamic infarcts

被引:20
作者
Fukatsu, R
Fujii, T
Yamadori, A
Nagasawa, H
Sakurai, Y
机构
[1] TOHOKU UNIV, GRAD SCH MED, DIV DISABIL SCI, SECT NEUROPSYCHOL, SENDAI, MIYAGI, JAPAN
[2] SENDAI NATL HOSP, DEPT NEUROSURG, SENDAI, MIYAGI, JAPAN
关键词
childish behavior; personality change; Ganser syndrome; amnesia; paramedian thalamic infarcts;
D O I
10.1159/000117448
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
We report a case with bilateral paramedian thalamic infarcts. The patient showed a dramatic personality change characterized by childish behavior and euphoria, which remained unchanged for 2 years after the onset. 'Vorbeireden' characterized by approximate answers was also observed. Anterograde amnesia had quite improved after 2 years, while retrograde amnesia for 1 year prior to the stroke onset and vertical gaze palsy remained unchanged. An MRI scan demonstrated bilateral medial thalamic and right midbrain infarcts without other lesions in the brain. A positron emission tomography study showed that cerebral metabolic rate for glucose was markedly decreased in both thalami and in the cerebellum, and only slightly decreased in the parietal and occipital cortical regions. Cerebral metabolic rates of glucose in the frontal and temporal cortices were within normal range. The paramedian thalamic lesions per se may be responsible for the patient's personality change, 'Vorbeireden', and amnesia.
引用
收藏
页码:230 / 235
页数:6
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