Neurological Surgery 脳神経外科37巻7号

2009年07月発行

症例

水頭症を来した血管周囲腔拡張の1例

著者： 森迫拓貴¹ 露口尚弘¹ 永田崇¹ 長久功¹ 一ノ瀬努¹ 石橋謙一¹ 大畑建治¹

所属機関： ¹大阪市立大学大学院医学部脳神経外科

ページ範囲：P.681 - P.686

Ⅰ．はじめに

　血管周囲腔（Virchow-Robin腔）は，くも膜下腔と直接の交通のない穿通枝の周囲を囲む軟膜に覆われた間質液を容れた間隙である^10,11,15)．この腔の拡張が，脳への圧迫や水頭症の原因となることが知られ，enlarged perivascular space（EPVS），giant tumefactive perivascular spaceなどと記載されている^2,4,6,13,14)．EPVSは囊胞様に拡大したり，多発的に集族することがあり，あらゆる年齢でさまざまな部位にみられる．今回われわれは，中脳，大脳基底核の血管周囲腔の拡張が閉塞性水頭症を来し，第三脳室開窓術を行った1例を経験したので報告する．

参考文献

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13）Salzman KL, Osborn AG, House P, Jinkins JR, Ditchfield A, Cooper JA, Weller RO：Giant Tumefactive perivascular spaces. AJNR Am J Neuroradiol 26：298-305, 2005

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