特発性正常圧水頭症診療ガイドライン 第3版
第2部 3 病理
第2部 クリニカルクエスチョン(CQ)編
3病理 | 序章-Ⅳ |
CQ3 | | | iNPHに特徴的な病理所見はあるか? |
A
現時点ではわかっていない(エビデンス総体D)。
解説
iNPHの剖検例1)-16)や生検組織の病理についていくつかの報告があるが,現在でもiNPHを特徴づける病理所見は明らかになっていない。全脳が検索された病理所見として,脳軟膜・くも膜の線維化・肥厚,くも膜顆粒の炎症性変化,脳室壁の上衣細胞の脱落,上衣下のグリオーシス,くも膜下腔や脳実質の血管壁の硬化性変化や脳実質の虚血性病変,Alzheimer病の病理変化(老人斑や神経原線維変化)などが記載されているが,症例ごとにさまざまである1)-16)。iNPHは高齢者に好発するため,老人斑,神経原線維変化や虚血性病変が混在する例が多いと考えられる。
[文献]
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13) | Espay AJ, Narayan RK, Duker AP, et al: Lower-body parkinsonism: reconsidering the threshold for external lumbar drainage. Nat Clin Pract Neurol 4: 50-55, 2008 |
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15) | Leinonen V, Koivisto AM, Savolainen S, et al: Post-mortem findings in 10 patients with presumed normal-pressure hydrocephalus and review of the literature. Neuropathol Appl Neurobiol 38: 72-86, 2012 |
16) | 宮田元,大浜栄作:特発性正常圧水頭症(iNPH)の神経病理.老年期認知症研究会誌 20: 6-9, 2013 |
[検索式]
PubMed検索(2019/6/22);"hydrocephalus" [All Fields] AND "pathology" [MeSH] |
医中誌;(水頭症-正常圧/TH or 正常圧水頭症/AL) and (神経病理学/TH or 神経病理/AL) |