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リツキシマブ誘発性食道潰瘍および狭窄による嚥下困難
Muhammad Anas Abdulrazzak1, Muhammed Yaman Swied1, Obada Daaboul1
1Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, IL.
ACG case reports journal
|December 24, 2025
まとめ
Bリンパ球標的抗体であるリツキシマブは、まれに食道への副作用を引き起こす可能性があります。この症例は、リツキシマブ誘発性食道潰瘍および狭窄を提示し、重度の嚥下困難を防ぐための早期診断と管理の重要性を強調しています。
科学分野:
- 免疫学
- 消化器病学
- 腫瘍学
背景:
- リツキシマブは、血液学的および自己免疫疾患の治療に承認されている、Bリンパ球上のCD20を標的とするモノクローナル抗体です。
- 大腸炎や下痢などの消化器系副作用は知られていますが、食道への影響は一般的に関連付けられていません。
- 咽頭刺激などの注入反応は、通常、特定の食道病変とは関連付けられていません。
研究 の 目的:
- リツキシマブ誘発性の食道潰瘍および狭窄の極めてまれな症例を報告すること。
- この有害事象の早期認識と迅速な管理の重要性を強調すること。
- リツキシマブが嚥下困難につながる重度の食道合併症を引き起こす可能性を明らかにすること。
主な方法:
- 進行性の嚥下困難を経験した患者の詳細な症例報告。
- 臨床所見、診断結果、および治療経過のレビュー。
- リツキシマブ誘発性の食道有害事象に関する文献レビュー。
主要な成果:
- 本症例は、リツキシマブ誘発性の食道潰瘍および狭窄による重度かつ進行性の嚥下困難を発症しました。
- このまれな合併症は、著しい罹患率を引き起こし、介入が必要となりました。
- 早期認識と管理は、患者の状態に対処する上で極めて重要でした。
結論:
- リツキシマブは、潰瘍および狭窄を含む、まれではあるが重篤な食道合併症を誘発する可能性があります。
- 臨床医は、嚥下困難を呈するリツキシマブ投与中の患者において、食道有害事象を考慮すべきです。
- リツキシマブ誘発性の食道損傷による長期的な罹患を防ぐためには、迅速な診断と管理が不可欠です。
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