免疫抑制の患者における皮の症状は,根底にある毛細血管ヘルパーT細胞リンパ腫を明らかにする
Marie-Laure García1, Rebeca Manso2, Juan Torre Castro3
1Pathology Department, Hospital Universitario de Cáceres, 10004, Cáceres, Spain.
Virchows Archiv : an international journal of pathology
|September 3, 2025
まとめ
このケーススタディは,エプスタイン・バーウイルス (EBV) 陽性B細胞リンパ腫と誤診された希少な血管免疫性T細胞リンパ腫 (AITL) を強調しています. 正確な診断には,臨床的,組織病理学的,および分子学的発見を統合する必要があります.
科学分野:
- 血液学
- 腫瘍学
- 免疫学
背景:
- 免疫不全患者のリンパ増殖性疾患のほとんどは,エプスタイン・バーウイルス (EBV) に関連したB細胞リンパ腫である.
- 血管免疫性T細胞リンパ腫 (AITL) は,最も一般的なT細胞リンパ腫サブタイプです.
研究 の 目的:
- AITLの複雑な症例を 提示するために 最初 誤って診断されました
- AITLにおける統合診断アプローチの課題と重要性を強調する.
主な方法:
- 皮膚症状の組織病理学的検査
- T細胞のクローナリティと変異分析 (RHOA,TET2) を含む分子研究
- 免疫抑制療法を受けた関節リウマチ患者の臨床および免疫学的評価
主要な成果:
- 患者は当初,多形性EBV陽性B細胞リンパ腫と診断された.
- 分子研究でT細胞のクローナリティが確認され,RHOAとTET2の変異が特定され,AITLの診断が支持されました.
- Epidermotropic EBV陽性B細胞の浸透は T細胞の腫瘍を隠した.
結論:
- AITLの診断には,組織病理学,臨床表現,分子データを組み合わせた包括的なアプローチが必要です.
- EBV陽性B細胞増殖は,特に免疫抑制患者において,基礎となるAITLを隠すことができます.
- このケースは 免疫不調の環境における AITLの診断の複雑さと 生物学的複雑さを強調しています
さらに関連する動画
07:17Author Spotlight: Advancing the Detection of Low-Frequency Mutations in Cancer Tissues
Published on: August 23, 2024
1.3K
07:39Isolation of CD4+ T-cells and Analysis of Circulating T-follicular Helper cTfh Cell Subsets from Peripheral Blood Using 6-color Flow Cytometry
Published on: January 7, 2019
12.4K
関連する概念動画
Cell-mediated Immune Responses
72.2K
Overview
72.2K
Skin Diseases and Disorders
4.1K
Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
4.1K
Immunodeficiency Diseases
1.2K
Immunodeficiency disorders are conditions in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. The immune system comprises a complex network of cells, tissues, and organs that work together to protect the body from potentially harmful invaders. When this system is deficient or not functioning properly, it leaves the body susceptible to infections, diseases, or other complications.
There are three main causes of immunodeficiency...
There are three main causes of immunodeficiency...
1.2K
Lymphoid Cells and Tissues
1.5K
Lymphoid cells and tissues are integral to the immune system, which is crucial in maintaining our body's defense against harmful pathogens. They form the building blocks of lymphoid organs, which include the spleen, thymus, and lymph nodes.
Lymphoid cells consist of various types of immune system cells. These include B and T lymphocytes, which are responsible for producing antibodies and killing infected cells, respectively. Dendritic cells act as messengers between the innate and adaptive...
Lymphoid cells consist of various types of immune system cells. These include B and T lymphocytes, which are responsible for producing antibodies and killing infected cells, respectively. Dendritic cells act as messengers between the innate and adaptive...
1.5K
Secondary Lymphoid Organs
3.2K
Secondary organs, including lymph nodes, the spleen, and mucosa-associated lymphoid tissue (MALT), work harmoniously to protect us from disease and infection.
The spleen is a vital organ in the lymphatic system, nestled in the upper left side of the abdomen. It is composed of two primary regions: the red pulp and the white pulp, each having distinct functions. The red pulp performs a significant role in blood filtration. It efficiently purges the blood of old or damaged red blood cells and...
The spleen is a vital organ in the lymphatic system, nestled in the upper left side of the abdomen. It is composed of two primary regions: the red pulp and the white pulp, each having distinct functions. The red pulp performs a significant role in blood filtration. It efficiently purges the blood of old or damaged red blood cells and...
3.2K
Skin Cancer
4.5K
Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
4.5K
