エオシノフィルが顕著な胃バイオプシー:臨床病理学的特徴と治療への反応
Nigar Anjuman Khurram1, Sanjay Kakar2, Dana Balitzer2
1Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.
Histopathology
|September 3, 2025
まとめ
ヒストロジカルエオシノフィルの胃炎の基準は,重要な症例を見逃す可能性があります. 胃エオシノフィルが増加した多くの患者は非特異的な症状を持ち,ステロイド依存性疾患を発症します.
科学分野:
- 胃腸内科
- 病理学について
- 免疫学
背景:
- ヒストロジカル・エオシノフィル性胃炎 (EoG) は,エオシノフィルの原因が知られている症例を除いて,高電力フィールド (HPF) による特定のエオシノフィル数で定義される.
- 提案されたEoG基準の臨床的有用性と診断の正確性は,さらなる評価を必要とする.
研究 の 目的:
- 組織性エオシノフィル性胃炎の基準を満たす患者の臨床表現と病理学的特徴を評価する.
- 提案されたEoGの診断基準の有効性を評価する.
主な方法:
- 23年にわたる胃バイオプシの遡及的レビューで,突出した粘膜エオシノフィルの症例を特定する.
- 臨床情報,内視検査結果,および医療記録からのフォローアップデータ分析.
- 症例の分類は,EoGの基準を満たすもの,エオシノフィルが顕著だが基準を満たさないもの,およびエオシノフィリアの二次的な原因を有するものとする.
主要な成果:
- 87例の合格症例のうち56例はEoGの基準を満たしており (16例はEoGの基準を満たさない顕著なエオシノフィルを有していた). 臨床表現,内視検査結果,治療反応において,これらのグループ間で有意な差異は認められなかった.
- エオシノフィリアの二次的な原因には,クローン病,ヘリコバクター・パイロリ感染症,ストロングロイド病,コラーゲン性胃炎,超エオシノフィール症候群,自己免疫性縮性胃炎,全身性乳房炎が含まれていた.
- ステロイドで治療された10人のEoG患者のうち7人が反応し,3人は反応しなかった. 2人の患者は ステロイド依存症の再発を発症しました
結論:
- 確立されたEoGの基準は,臨床的に有意な胃エオシノフィリアの全ての症例を捉えることはできない.
- 胃粘膜のエオシノフィルの増加は,しばしば非特異的な胃腸症状と内視検査で示される.
- 多くの患者は保守的な治療で改善しますが,一部は慢性的なステロイド依存性疾患を発症し,厳密に監視する必要があります.
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