Apparently Asymptomatic Arachnoid Cyst : Postoperative Improvement of Subtle Neuropsychological Impediment : Case Report
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概要
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A 13-year-old right-handed boy sustained minor head trauma in a traffic accident. Computed tomography of the head showed no injuries, but revealed an arachnoid cyst in the left middle fossa. Single photon emission computed tomography revealed relatively decreased cerebral blood flow (CBF) in the left frontal and temporal lobes compared with the contralateral regions. The Wechsler Intelligence Scale for Children-Revised (WISC-R) test showed full scale intelligence quotient (IQ) was normal, but also a discrepancy between verbal IQ and performance IQ. Cyst-peritoneal shunting was performed. Postoperatively, laterality of the CBF in the frontal and temporal lobes was resolved and the verbal IQ/performance IQ discrepancy was normalized. In this case, although the WISC-R score was apparently within normal limits, latent regional ischemia induced by compression due to the arachnoid cyst may have caused neuropsychological dysfunction. CBF study and neuropsychological evaluation by the WISC-R may be useful for selecting patients with apparently asymptomatic arachnoid cysts for surgery.
- 2010-05-15
著者
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MATSUMURA Akira
Department of Neurosurgery, Graduate School of Comprehensive Human Sciences, University of Tsukuba
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AKUTSU Hiroyoshi
Department of Neurosurgery, Graduate School of Comprehensive Human Sciences, University of Tsukuba
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MATSUDA Wakoto
Department of Neurosurgery, Ibaraki Prefectural Central Hospital
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MIYAMOTO Shinya
Department of Neurosurgery, Ibaraki Prefectural Central Hospital
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NOGUCHI Shozo
Department of Neurosurgery, Ibaraki Prefectural Central Hospital
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TSUNODA Takashi
Department of Neurosurgery, Ibaraki Prefectural Central Hospital
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SASAKI Mamoru
Department of Neurosurgery, Ibaraki Prefectural Central Hospital
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Noguchi Shozo
Department Of Neurosurgery Ibaraki Prefectural Central Hospital
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Sasaki Mamoru
Department Of Neurosurgery Ibaraki Prefectural Central Hospital
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Matsuda Wakoto
Department Of Neurosurgery Ibaraki Prefectural Central Hospital
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Matsuda Wakoto
Department Of Anatomy Shiga University Of Medical Science
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Matsumura Akira
Department Of Neurosurgery Graduate School Of Comprehensive Human Sciences University Of Tsukuba
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Akutsu Hiroyoshi
Department Of Neurosurgery Ibaraki Prefectural Central Hospital
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Akutsu Hiroyoshi
Department Of Neurosurgery Graduate School Of Comprehensive Human Sciences University Of Tsukuba
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Tsunoda Takashi
Department Of Neurosurgery Ibaraki Prefectural Central Hospital
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Tsunoda Takashi
Department Of Neurological Surgery Institute Of Clinical Medicine
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Miyamoto Shinya
Department Of Neurosurgery Ibaraki Prefectural Central Hospital
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Miyamoto Shinya
Department Of Chemistry Faculty Of Science Tokyo Metropolitan University
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Sasaki Mamoru
Department Of Electrical Engineering And Computer Science Faculty Of Engineering Kumamoto University
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Matsumura Akira
Department Of Gastroenterology Dokkyo Medical University
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Matsumura Akira
Department Of Forest Resources Science Shizuoka University
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MATSUMURA Akira
Department of Neurosurgery, Institute of Clinical Medicine, University of Tsukuba
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MATSUMURA Akira
Department of Electronic Science and Engineering, Faculty of Engineering, Kyoto University
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