血管免疫芽细胞T细胞淋巴瘤和卡波西肉瘤:一个偶然的碰撞?
Elsa Poullot1,2,3, Dina Milowich4, François Lemonnier2,3,5
1Département de Pathologie, Hôpitaux Universitaires Henri Mondor, AP-HP, Créteil, France.
Histopathology
|November 21, 2023
概括
血管免疫芽细胞型T细胞淋巴瘤 (AITL) 和卡波西肉瘤 (KS) 很少同时发生. 这项研究确定了三名同时患有AITL和KS的HIV阴性患者,并指出了不同的瘤组件和AITL相关突变.
科学领域:
- 血液学 血液学 血液学
- 在瘤学瘤学.
- 病毒学 病毒学
背景情况:
- 血管免疫芽细胞型T细胞淋巴瘤 (AITL) 是一种流行的T细胞淋巴瘤.
- AITL通常涉及高内皮静脉和爱斯坦-巴尔病毒阳性免疫细胞.
- 在AITL中,与HHV8感染或卡波西肉瘤 (KS) 的关联并未得到充分描述.
研究的目的:
- 描述AITL和HHV8感染或KS之间的关联.
- 在并发的AITL和KS病例中调查不同的瘤组件.
主要方法:
- 三名HIV阴性男性患者的案例研究,同时患有结节AITL和KS.
- 淋巴瘤和KS组件的组织病理学和免疫组织化学分析.
- 在AITL和KS的基因突变中进行高通量测序.
主要成果:
- 确定了三名同时患有AITL和KS的患者;两个来自KS流行地区.
- AITL显示了瘤TFH细胞和丰富的血管,缺乏EBV+免疫细胞.
- 在KS的焦点中包含了HHV8+状细胞;在AITL中存在TET2,RHOA和IDH2突变,而在KS中则没有突变.
- 在23例对照AITL病例中没有发现HHV8感染.
结论:
- 同时的节点AITL和KS是罕见的,在诊断上具有挑战性.
- 这种关联可能是偶然的,或与AITL的免疫功能障碍有关.
- 需要进一步的研究来澄清AITL和KS之间的关系.
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