林奇样综合征的临床病理学特征 林奇样综合征的临床病理学特征
Sakiko Nakamori1, Misato Takao1, Akinari Takao2
1Department of Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Bunkyo-Ku, Tokyo, 113-8677, Japan.
International journal of clinical oncology
|April 20, 2024
概括
林奇样综合征 (LLS) 是微卫星不稳定性 (MSI) 和结直肠癌 (CRC) 的一个独特的亚型. 虽然临床上与林奇综合征 (LS) 类似,但LLS显示较少的相关瘤,表明不同的监测需求.
科学领域:
- 在瘤学瘤学.
- 遗传学 是一个遗传学.
- 胃肠病学 胃肠病学
背景情况:
- 林奇样综合征 (LLS) 是MSI结直肠癌 (CRC) 的第三类建议.
- 这种LLS不同于林奇综合征 (LS) 和零星的MSI CRC,没有MMR基因变异或MLH1高甲基化.
研究的目的:
- 澄清和比较LLS的临床病理特征与其他MSICRC亚型.
- 为了区分LLS与LS和零星的MSICRC.
主要方法:
- 对2634名连续接受普遍瘤查 (UTS) 和MSI分析的结直肠癌 (CRC) 患者的分析.
- 在MSI CRC.患者中,对不匹配修复 (MMR) 基因进行遗传检测.
主要成果:
- 在146名MSI CRC患者中发现了19例LLS病例 (0.7%).
- 与较年轻的患者,左侧瘤,KRAS变异,BRAF野生类型和与零星的MSI CRC相比,与修订的贝塞斯达指南的更高一致性有关.
- LLS显示了与LS相关的MSI CRC类似的临床病理因素,但瘤的发病率较低.
结论:
- 临床区分LS和LLS是具有挑战性的.
- 在LS中较高的瘤发病率表明LS和LLS需要不同的查和监测策略.
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