尽管 HER2 - low 和 HER2 - ultralow 乳腺癌的治疗前景逐渐明朗，但目前仍存在诸多问题。一方面，中国患者中 HER2 - low 和 HER2 - ultralow 表达的高质量数据匮乏，现有数据多基于历史结果，且主要针对 HER2 阳性人群。另一方面，IHC 和 ISH 检测中，不同观察者之间的评分差异较大，尤其是在 0 - 1 + 评分区间，这给 HER2 - low ...

All positive (IHC 3+) and doubtful (IHC 2+) cases were screened by fl uorescence in situ hybridization (FISH). Patients with HER2 gene amplification, normal left ventricular ejection fraction ...

Future Oncol. 2015;11(7):1023-1026. Tumor-negative breast cancers misclassified as HER2 negative by IHC (0 or 1+) could therefore be reclassified by FISH, with a remarkable impact on medical ...