過剰は禁物
Danny Varghese1, Dina Abdelsalam2, Safa Ibrahim2
1Texas A&M College of Medicine, Bryan, Texas, USA.
Survey of ophthalmology
|January 11, 2026
まとめ
糖尿病患者が突然の視力喪失を経験した。視神経の腫れと蒼白はフォスター・ケネディ症候群を模倣していたが、両側非動脈炎性前部虚血性視神経症(NAION)と診断された。
科学分野:
- 眼科学
- 神経学
- 内分泌学
背景:
- 2型糖尿病および高血圧を有する38歳男性が急性視力喪失を呈した。
- 眼科所見には、左眼の視神経乳頭浮腫(ODE)および右眼の視神経乳頭蒼白(ODP)が含まれていた。
- 両側性に重度の非増殖糖尿病網膜症および嚢胞様黄斑浮腫が存在した。
研究 の 目的:
- 糖尿病および高血圧患者の視力喪失の原因を調査すること。
- フォスター・ケネディ症候群と他の視神経症を鑑別すること。
- 片側視神経乳頭浮腫および対側視神経乳頭蒼白の原因を特定すること。
主な方法:
- 臨床眼科検査。
- 神経画像検査(MRI/CT)および全身評価。
- 視神経症の鑑別診断。
主要な成果:
- 患者は片側急性視力喪失、視神経乳頭浮腫、および対側視神経乳頭蒼白を呈した。
- 頭蓋内腫瘤によるフォスター・ケネディ症候群の初期疑いは、神経画像検査で除外された。
- 最終診断は、両側非動脈炎性前部虚血性視神経症(NAION)に起因する偽性フォスター・ケネディ症候群であり、右眼の先行する未認識のNAIONと左眼の急性NAIONが関与していた。
結論:
- 糖尿病患者における片側視神経乳頭浮腫と対側視神経乳頭蒼白は、偽性フォスター・ケネディ症候群を表す可能性がある。
- 非動脈炎性前部虚血性視神経症(NAION)は、非典型的な提示であっても、鑑別診断で考慮されるべきである。
- 視神経症の正確な診断と管理には、迅速かつ徹底的な診断評価が不可欠である。
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