胃两癌的临床病理学特征:一个病例系列
Dazhou Li1, Xiaodong Lin1, Wenqing Huang2
1Department of Pathology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510163, China.
Annals of diagnostic pathology
|November 26, 2025
概括
胃两癌 (GAC) 显示了与瘤形态相关的各种Claudin 18.2表达. 这一发现可能会为这种罕见的癌症提供有针对性的治疗和分子亚型的指导.
科学领域:
- 胃肠道学和瘤学
- 癌症生物学 癌症生物学
- 病理学 病理学 病理学
背景情况:
- 胃两癌 (GAC) 是一种罕见的恶性瘤,具有神经内分泌和外分泌特征.
- 克劳丁18.2 (CLDN18.2) 表达是某些胃癌的标,但其在GAC中的模式尚不清楚.
研究的目的:
- 为了研究胃两癌中的克劳丁18.2表达模式.
- 为了将CLDN18.2表达与瘤形态和临床结果相关联.
主要方法:
- 在2020-2024年期间诊断的四个GAC病例的回顾性分析.
- 对神经内分泌标记物,HER2和CLDN18.2.2.的免疫组合化学评估.
- 评估形态图案,包括板状/嵌套,管状和印章环状的状.
主要成果:
- 所有GAC病例表达了synaptophysin;其他神经内分泌标志物表达变化.
- 在所有案例中,HER2都是阴性.
- 在板状/嵌套和管状区域中,CLDN18.2的表达是中度到强烈的,但在密封戒指组件中不存在,与形态相关.
结论:
- 胃两癌表现出形态依赖的Claudin 18.2表达.
- 准确的诊断和综合评估是非常重要的,因为GAC的异质性和攻击性行为.
- 这些发现表明CLDN18.2向治疗和GAC.分子亚型的潜力.
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