高度子宫内膜癌 具有固体基层形态和地理性坏死缺少确定的像皮洛马克思的特征:临床病理学特征包括侵略性行为和新型分子事件
David K Carlson1, Cheyenne Painter2, Sarah E Gradecki1
1Department of Pathology.
概括
高度子宫内膜腺癌具有固体基质形态和地理性亡 (SB-GN),表现出侵略性行为和独特的分子变化. 这些发现表明,SB-GN可能表明预后不佳,并为子宫内膜癌的新治疗策略提供信息.
科学领域:
- 妇科瘤学 妇科瘤学
- 病理学 病理学 病理学
- 分子瘤学分子瘤学
背景情况:
- 高度子宫内膜腺癌可以表现出具有地理性瘤 (SB-GN) 的固体基质形态.
- 高度子宫内膜腺癌 (PiMHEC) 是一种最近定义的亚型,具有SB-GN,影细胞,CTNNB1突变,CDX2表达和不良结果.
- 在PiMHEC以外的子宫内膜癌中,SB-GN的临床病理谱和分子场景尚未得到充分确定.
研究的目的:
- 研究表现为SB-GN的子宫内膜癌的临床病理特征,分子变化和结果.
- 为了确定SB-GN组织学和像皮洛马基的高度子宫内膜癌 (PiMHEC) 之间的重叠.
- 确定SB-GN子宫内膜癌中新型分子发现的潜在治疗影响.
主要方法:
- 使用组织微阵列对300种子宫内膜癌进行SB-GN组织学查.
- 详细的全部分形态检查,免疫组织化学分析 (包括CDX2) 和在确定的SB-GN病例上下一代测序.
- 临床后续数据审查,以评估结果.
主要成果:
- 四例 (1.3%) 呈现SB-GN组织学.
- 所有三个随访的病例都表现出侵略性行为,即使不匹配修复缺陷 (MMR-D),与其他MMR-D高度癌症形成鲜明对比.
- 分子分析揭示了多种变异,包括CTNNB1,KRAS,FGFR2和Notch路径变异,在大多数情况下没有影子细胞. 一个携带CTNNB1突变的病例对免疫治疗有反应.
结论:
- 高度子宫内膜腺癌中的SB-GN模式可能表明预后不佳,无论明显的像pilomatrix的分化如何.
- 新的分子事件,包括FGFR2和Notch通路的改变,与SB-GN子宫内膜癌有关.
- 这些分子发现可能为管理这些侵略性瘤提供新的治疗点和策略.
关键词:
CTNNB1 FGFR2 在线观看宫内膜癌 (Endometrial carcinoma) 是一种子宫内膜癌.在FIGO等级3中,FIGO等级为3.没有口,没有口.皮姆赫克 (PiMHEC) 公司皮洛马特里克斯样性癌瘤基化物是一种基化物.这种蛋白质是β-catenin,也就是β-catenin.地理性亡 - 地理性亡更多相关视频
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