If breast cancer cells have estrogen receptors, they are ER-positive. If they have progesterone ... A doctor may use an immunohistochemistry (IHC) test to check cancer cells for estrogen and ...
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 ...