免疫グロブリンG4関連疾患における多臓器関与:症例報告
Jing Qiao1, Xiaoxia Xu1, Ze Wang1
1Department of Gastroenterology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia Autonomous Region, China.
Medicine
|January 21, 2026
まとめ
この症例報告は、消化管、膵臓、肝臓に影響を与える多臓器免疫グロブリンG4関連疾患(IgG4-RD)の稀な症例を詳述する。早期診断とグルココルチコイド治療により臨床症状が著しく改善し、IgG4-RDの多様な病態の認識の重要性が強調された。
科学分野:
- 免疫学
- 消化器病学
- 病理学
背景:
- 免疫グロブリンG4関連疾患(IgG4-RD)は、血清IgG4の上昇とIgG4陽性形質細胞浸潤を特徴とする稀な疾患です。
- 特に消化管における多臓器関与は稀ですが、診断上の課題をもたらします。
研究 の 目的:
- 消化管、膵臓、肝臓を巻き込んだ多臓器IgG4-RDの稀な症例を報告する。
- 臨床医のIgG4-RDの多様な病態に対する認識を高め、誤診や不要な手術を減らす。
主な方法:
- 76歳女性が腹痛、黄疸、血清IgG4高値、および異常な肝機能検査で来院しました。
- 画像検査では胆管拡張および膵管/胆管狭窄が明らかになり、胃カメラ検査では炎症が認められました。
- 組織病理検査により、胃、膵臓、肝臓の生検でIgG4/IgG形質細胞比率が高いIgG4-RDが確認されました。
主要な成果:
- 患者は膵臓、胆管、肝臓、および消化管に影響を及ぼすIgG4-RDと診断されました。
- 経口プレドニジン酢酸エステルによる治療により、黄疸、肝機能検査、および血清IgG4値が著しく改善しました。
- フォローアップ画像検査および胃カメラ検査により、病状の改善が示唆されました。
結論:
- IgG4-RDは多様な臨床症状を呈し、多臓器に影響を与える可能性があります。
- 誤診が多く、不要な外科的介入につながる可能性があります。
- IgG4-RDの効果的な管理には、タイムリーな診断と適切なグルココルチコイド療法が不可欠です。
関連する概念動画
Immunoglobulin-like Cell Adhesion Molecules
4.2K
Immunoglobulin-like cell adhesion molecules or Ig-CAMs are a versatile group of cell surface glycoproteins belonging to the immunoglobulin protein superfamily. Ig-CAMs possess the characteristic immunoglobulin protein domains and other domains such as the fibronectin type III domain. The Ig domains are glycosylated to varying degrees in different Ig-CAMs.
Ig-CAMs exhibit either homophilic binding (to other Ig-CAMs) or heterophilic binding (to other ligands such as integrins). While most Ig-CAMs...
Ig-CAMs exhibit either homophilic binding (to other Ig-CAMs) or heterophilic binding (to other ligands such as integrins). While most Ig-CAMs...
4.2K
Data Reporting and Recording
5.4K
Reporting and recording are crucial in data documentation. The timely, thorough, and accurate documentation of facts is essential when recording patient data. Failure to record findings during an assessment or interpretation of a problem will result in loss of information and make the patient document unreliable. The reader is left with general impressions if the information is not specific. A recording is documenting data of the individual's health information in a traceable, secure, and...
5.4K
Antigens Involved in Adaptive Immunity
1.3K
An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
Complete Antigens
Complete antigens possess both immunogenicity and...
Complete Antigens
Complete antigens possess both immunogenicity and...
1.3K
Types of Reports I: Hands-off Report
1.5K
A hand-off report, also known as a change-of-shift report, is a crucial nursing process that ensures the smooth transition of patient care responsibilities between nursing staff.
Following are the key components and categories of hand-off reports:
Purpose and Process:
Following are the key components and categories of hand-off reports:
Purpose and Process:
1.5K
Types of Reports II: Incident or Occurrence Report
1.2K
An Incident or Occurrence Report in a healthcare setting is a crucial document used to record any unexpected occurrence that may or may not have affected a patient, employee, or visitor. Such reports are critical to improving patient safety and include all details leading up to and including the event.
Purposes:
In the healthcare industry, reports play a crucial role in documenting incidents within an agency. The primary objective of these reports is to ensure patient safety, uphold the...
Purposes:
In the healthcare industry, reports play a crucial role in documenting incidents within an agency. The primary objective of these reports is to ensure patient safety, uphold the...
1.2K
Levels of Organization
138.8K
Biological organization is the classification of biological structures, ranging from atoms at the bottom of the hierarchy to the Earth's biosphere. Each level of the hierarchy represents an increase in complexity that builds upon the previous level.
Molecules Are Composed of Atoms, and Biomolecules Are Assembled from Molecules:
The most basic levels include atoms, molecules, and biomolecules. Atoms, the smallest unit of ordinary matter, are composed of a nucleus and electrons. Molecules...
Molecules Are Composed of Atoms, and Biomolecules Are Assembled from Molecules:
The most basic levels include atoms, molecules, and biomolecules. Atoms, the smallest unit of ordinary matter, are composed of a nucleus and electrons. Molecules...
138.8K


