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三阴乳腺癌占乳腺癌总数的 10%~20%。很多人对三阴乳腺癌存在错误的认识,存在一些疑惑,“三阴乳腺癌没救了么”、“三阴乳腺癌能治么”、“三阴乳腺癌能活过 5 年么”。那么,三阴乳腺癌到底能治么?当然能!而且效果也不太差。
\n\n本文就来帮助大家清楚认识这种特殊类型的乳腺癌。
\n\n所谓“三阴”,其实是指乳腺癌的雌激素受体(ER)、孕激素受体(PR)和人类表皮生长因子受体-2(HER-2)表达均为阴性,是医学上对乳腺癌的一种分型。
\n\n与其他类型的乳腺癌相比,三阴乳腺癌的发病年龄较早,多发生于绝经前的年轻女性。同时,多数三阴乳腺癌的病理组织学分级较差,侵袭性较强,进展相对较快。
\n\n另外,对于 ER、PR 阳性的乳腺癌,可以选择不良反应相对较小的内分泌治疗,对于 HER-2 阳性的乳腺癌,可以进行靶向治疗,但这两种治疗手段对于 ER、PR、HER-2 都为阴性的三阴乳腺癌效果并不佳,因为其缺乏这两种治疗可以发挥作用的靶点。
\n\n三阴乳腺癌少了内分泌治疗和靶向治疗两项针对乳腺癌的治疗手段,这在一定程度上影响了治疗效果。
\n\n虽然无法应用内分泌治疗和抗 HER-2的靶向治疗,但对于三阴性乳腺癌,还有手术治疗、放疗和化疗等多种手段可以使用。并且,乳腺癌的治疗效果不仅仅取决于 ER、PR 和 HER-2 这些指标,更取决于肿瘤的分期。很多分期较早的三阴乳腺癌同样可以达到根治的效果,即使不能根治,也可以通过上述治疗手段有效延长生存时间。
\n\n近年来,针对三阴乳腺癌的研究有了更多进展。一方面,三阴性乳腺癌被进一步细分了很多类型,其中几种特殊类型的三阴乳腺癌,例如腺样囊腺癌,结局就比一般乳腺癌好,对不同类型可以采用针对性的治疗策略,有助于提高治疗效果。另一方面,新近的研究表明,聚二磷酸腺苷核糖聚合酶 (PARP) 抑制剂等靶向治疗和 PD-L1 抑制剂等免疫治疗对三阴乳腺癌也具有较好的疗效,尽管需要一定时间才能逐步应用于临床,但仍为治疗带来了希望,三阴乳腺癌的治疗有望获得新的成果和突破。
\n\n目前数据显示,三阴乳腺癌的 5 年生存率大约为 77%,略低于所有类型乳腺癌 90% 的生存率,但并非天壤之别。与其他类型的乳腺癌一样,三阴乳腺癌生存时间一旦超过 5 年,复发的可能性就非常低了,因此,在与三阴乳腺癌的战斗中,依然有很大的胜算。
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