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Long term prognosis of pediatric shunt operation for arachnoidal cyst : A case report of developmental dyslexia emerging in school age Rika Shinkawa 1,4 , Akihiro Kawasaki 1,3,5 , Shigeki Ono 2 , Isao Date 2 , Kunihiro Fukushima 1 1Department of Otolaryngology-Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences 2Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences 3Okamaya University Hospital 4Department of Rehabilitation Medicine, Mannari Hospital 5Department of Clinical Research, Tokushima National Hospital Keyword: 中頭蓋窩クモ膜囊胞 , 読み書き障害 , 視覚認知障害 , 音韻処理障害 , developmental dyslexia , arachnoidal cyst , learning disability pp.69-76
Published Date 2008/7/15
DOI https://doi.org/10.11477/mf.6001100156
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 The long term prognosis following a craniotomy for an arachnoidal cyst or hydrocephalus has rarely been reported. Developmental dyslexia was observed in a right-handed boy with an arachnoidal cyst in the middle cranial fossa. His hiragana dyslexia was first noted after entering mainstream-school. SPECT imaging revealed a reduction of regional cerebral blood flow (rCBF) in the left parietal and temporal lobes even after surgical removal of the arachnoidal cyst. It was suggested that the hypofunction of these regions caused his visual-cognitive and phonological-processing dysfunctions. Cases with preferable development after craniotomy have been sometimes neglected from postoperative follow up. However, it must be noted that cognitive dysfunction due to localized cerebral damage can cause less severe disabilities, including learning difficulties, and neuropsychological evaluations for a patient at school age may play an important role for the follow-up of these patients.


Copyright © 2008, Japanese Association of Speech-Language-Hearing Therapists. All rights reserved.

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電子版ISSN 印刷版ISSN 1349-5828 日本言語聴覚士協会

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