同时存在的子宫内膜癌和卵巢癌:分子和病理特征定义了低风险实体
Amy Jamieson1, Jutta Huvila2, Samuel Leung3
1University of British Columbia, Department of Gynecology and Obstetrics, Division of Gynecologic Oncology, Vancouver, BC, Canada.
概括
FIGO IA3分期系统识别出一个低风险群体的共存子宫内膜和卵巢癌. 纳入分子特征完善了这种分类,可能允许更多患者的治疗降级.
科学领域:
- 妇科瘤学 妇科瘤学
- 病理学 病理学 病理学
- 分子诊断学 分子诊断学
背景情况:
- 同时存在的子宫内膜癌和卵巢癌往往是惰的,并与克隆相关.
- 目前这种实体的病理指标和临床管理高度可变.
- 国际妇科和产科联合会 (FIGO) 2023年系统为特定的共存癌症引入了IA3阶段.
研究的目的:
- 为了验证FIGO阶段IA3是否准确地识别了具有非常低复发风险的共存子宫内膜和卵巢癌.
- 评估分子特征和扩展卵巢病理学标准是否可以提高预后准确性.
- 根据精确的标准,确定适合减缓治疗的患者.
主要方法:
- 临床病理学,分子和结果数据从患有子宫内膜癌和卵巢癌同时存在的患者中收集.
- 数据从病理档案和分子分类的子宫内膜癌队列中提取.
- 分子类型包括p53异常 (p53abn),不匹配修复缺陷 (MMRd),POLE突变 (POLEmut) 和没有特定分子谱 (NSMP) 与雌激素受体 (ER) 状态.
主要成果:
- 在p53abn,MMRd和NSMP ER负的低分子亚型中观察到更高的复发率.
- 32名患者符合FIGO IA3标准,只有一个复发 (MMRd).
- 扩大标准,包括分子特征和更广泛的病理发现,确定了另外48名没有复发的患者,显著改善了风险分层 (p = .008).
- 子宫内膜和卵巢瘤之间的分子亚型一致性很高 (91%).
结论:
- 根据FIGO IA3标准,有效地识别出一组共存的子宫内膜癌和卵巢癌,结果极好.
- 整合分子特征可以提高这些癌症的预后辨别能力.
- 改进的标准支持更大比例的患者 (49%) 缓和治疗,在扩大低风险组中显示零复发.
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