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在SDH缺陷癌中的形态多样性:对变体特征和脱差的三种情况的探索

Fanni Sánta¹, Antranik Dabaghian², Boglárka Pósfai¹

¹Department of Pathology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary.

Virchows Archiv : an international journal of pathology

|November 19, 2024

概括

酸脱酶 (SDH) 缺乏的细胞癌 (RCC) 是年轻人罕见的癌. 这项研究扩展了已知的SDH缺乏RCC的外观,提出了诊断挑战.

科学领域:

在瘤学瘤学.
遗传学遗传学是一个
病理学病理学病理学

背景情况:

缺酸脱酶 (SDH) 的细胞癌 (RCC) 是一种罕见的癌亚型,主要影响年轻人.
它与SDHx基因的生殖基因突变有关,最常见的是SDHB.
典型的组织学包括在固体或微囊中形成的类细胞,有时会捕获正常的管道.

研究的目的:

描述三例SDH缺乏RCC的病例,其形态特征重叠,与缺乏 fumarate hydratase的RCC和TFEB重新排列的RCC.
为突出分子定义瘤的诊断挑战.
扩大已知的SDH缺乏RCC的形态谱.

主要方法:

对三例SDH缺乏RCC病例的组织病理学检查.
针对SDHB表达的免疫组织化学分析.
基因分析以确定致病性SDHB突变并确认生殖系起源.

主要成果:

这三种瘤都缺乏SDHB表达,并且具有致病性SDHB突变;两个病例的生殖系起源被证实.
观察到与其他RCC亚型异常重叠的形态特征.
在两名患者中发生了转移,表明了积极的临床行为.

结论:

缺少SDH的RCC可能呈现出多样化和重叠的组织学特征,造成诊断挑战.
缺乏SDH的RCC的形态谱比以前认识的更广泛.
这些瘤似乎在临床上具有侵略性,这强调了对准确诊断和管理的需要.

关键词:

在 RCC RCC 里面,你会发现.细胞癌是细胞癌.SDHB SDHB是什么意思 Succinate 脱水酶的作用.

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