免疫担当個体における播種性クリプトコッカス症による副腎不全
Jeremy A Knott1,2, Zoran Apostoloski1
1Department of Endocrinology, Wollongong Hospital, Sydney, NSW, Australia, nsw.gov.au.
Case reports in endocrinology
|January 26, 2026
まとめ
原発性副腎不全は免疫担当患者では稀である。本症例は、副腎不全を引き起こす播種性クリプトコッカス症を強調し、より良い結果を得るための早期診断と抗真菌療法を強調する。
科学分野:
- 感染症
- 内分泌学
- 放射線学
背景:
- 原発性副腎不全は、特に免疫担当個体において、真菌感染症が原因で発症することは稀である。
- 播種性真菌感染症は副腎に浸潤し、副腎不全を引き起こす可能性がある。
研究 の 目的:
- 免疫担当患者におけるクリプトコッカス・ネオフォルマンスによる副腎不全の稀な症例を報告する。
- 副腎不全として現れる播種性クリプトコッカス症の診断および治療上の考慮事項を強調する。
主な方法:
- 副腎不全の症状を呈する61歳免疫担当男性の症例提示。
- 診断的ワークアップには、副腎CT、FDG-PET、副腎生検、血清クリプトコッカス抗原(CrAg)検査、および脳脊髄液分析が含まれた。
- 治療には、ヒドロコルチゾン、フルドロコルチゾン、リポソーム型アムホテリシンB、5-フルシトシン、およびフルコナゾールが含まれた。
主要な成果:
- 患者は疲労感、体重減少、めまい、低ナトリウム血症、高カリウム血症を呈した。
- 画像検査では中央壊死を伴う両側副腎腫大が明らかになった。
- 副腎生検でクリプトコッカス感染が確認された。
- CrAgおよびCSF分析は陽性であった。
- ホルモン補充療法と抗真菌療法により症状は改善した。
結論:
- 副腎不全の免疫担当患者においては、播種性クリプトコッカス症を考慮すべきである。
- この病態の管理には、迅速な診断と適切な抗真菌療法が不可欠である。
- 本症例は、原因不明の副腎不全に対する包括的な診断アプローチの重要性を強調するものである。
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