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小肠SMARCA4缺陷无差异性癌症与肠:一个病例报告

Xiaoshan Cai¹, Shanshan Liu², Linqian Li³

¹Department of Pathology, Weifang No. 2 People's Hospital, Weifang Respiratory Disease Hospital, Weifang, Shandong 261041, P.R. China.

Oncology letters

|December 12, 2025

概括

这项研究详细介绍了一种罕见的,激进的小肠癌,即SMARCA4缺陷不分化癌 (SMARCA4-DUC),这种癌症迅速进展,并在43天内导致死亡. 该案突出了这种恶性瘤的独特特征和潜在的治疗点.

科学领域:

在瘤学瘤学.
胃肠病学胃肠病学
遗传学遗传学是一个

背景情况:

交换机/非发酵糖 (SWI/SNF) 相关的染色体亚家族的与活性蛋白相关的调节器A成员4缺陷不分化癌 (SMARCA4-DUC) 是一种罕见且具有攻击性的胃肠癌.
SMARCA4-DUC的特点是失去了SMARCA4的表达和不分化的形态.

研究的目的:

报告一个SMARCA4-DUC病例的快速进展和多器官转移.
描述SMARCA4-DUC. 的临床,成像和病理特征.
提高临床医生和病理学家对SMARCA4-DUC的理解和认可.

主要方法:

一位患有SMARCA4-DUC.的患者的病例报告.
主要瘤的组织学和分子分析.
下一代测序 (NGS) 用于突变分析.

主要成果:

患者出现了肠道内和转移到肺部,肝脏,脏和皮肤的转移,导致43天内死亡.
组织病理学揭示了缺乏SMARCA4的未分化癌瘤.
NGS在PTEN,TP53,ATM,EPHR5和EGFR p.F997L中发现了致病突变,这表明DNA修复缺陷的背景.

结论:

SMARCA4-DUC是一种高度侵略性的恶性瘤,预后不佳.
鉴定的突变可能为精密治疗提供潜在的点.
需要进一步的研究来阐明分子机制,并开发针对SMARCA4-DUC.的向治疗方法.

关键词:

具有侵略性的恶性瘤.多器官转移的多器官转移小肠小肠的小肠的小肠.交换/非发酵糖 (SWI/SNF) 相关的矩阵关联的染色体亚家族A成员4-缺陷不分化癌症的活性蛋白依赖调节器.有针对性的治疗.

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