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軟骨硬化症患者のリトキシマブ関連大腸炎の内視鏡検査および組織病理学的発見
Roberto A Alvarado-Hernández1, Juan M Reyes-Morales1, Yoeli M Escandon-Espinoza1
1Gastrointestinal Endoscopy, Institute for Social Security and Services for State Workers (ISSSTE) - Hospital Regional De Alta Especialidad Bicentenario De La Independencia, Tultitlan, MEX.
Cureus
|August 27, 2025
まとめ
自身免疫疾患に対するリトキシマブ治療は,まれにデノボ・潰瘍性大腸炎を引き起こす. 胃腸症状に対する警戒と早期の内視鏡検査は,このまれな副作用の迅速な診断と管理に不可欠です.
科学分野:
- 免疫学
- 胃腸内科
- 腫瘍学
背景:
- リトゥキシマブはCD20+Bリンパ球を標的にするキメリックモノクローナル抗体で,血液学的悪性腫瘍と自己免疫疾患を治療します.
- 一般的には安全ですが,リトキシマブの使用は腸炎を含む胃腸の副作用と関連しています.
- 消化病歴がない場合でも,珍しいが文書化された合併症は,新たな炎症性腸疾患の発生である.
研究 の 目的:
- リトゥキシマブが新たな炎症性腸疾患を誘発する可能性を強調する.
- 微妙な症状が重なり合って 診断が難しいことを強調する
- 抗CD20療法を受けている患者の早期の内視検査の重要性を強調する.
主な方法:
- 慢性的なリトキシマブ治療を受けている全身性硬化症患者の症例報告
- 胃腸症状の臨床的,内視的,および組織病理学的評価
- リトゥキシマブ関連大腸炎と新たな炎症性腸疾患に関する文献のレビュー
主要な成果:
- 患者さんは潰瘍性大腸炎の特徴を持つ大腸炎を発症しました.
- 自己免疫疾患の症状と重複する微妙な症状のために診断は困難でした.
- 潜在的な合併症には,狭窄,出血,または穿孔が及ばない場合が含まれます.
結論:
- 臨床医は,リトキシマブを投与する患者において,消化器系症状の持続に注意する必要があります.
- リトゥキシマブ誘発性大腸炎を検出するには,生検による早期の内視鏡検査が不可欠です.
- 早期の診断と治療は 重篤な合併症のリスクを軽減します
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