Associations between FNA-HER2 of 136 metastatic ALNs and clinicopathologic features of their primary breast cancers.

IHC: immunohistochemistry.aCases with no available results for each characteristic were excluded from data analysis: two cases for primary cancer size, 22 cases for HER2 FISH, and 29 cases for AR and KI-67 status.bHER2 FISH test were performed for 58 cases with borderline (2+) IHC results and for 57 cases on the recommendation of either the physician or the pathologist.Associations between FNA-HER2 of 136 metastatic ALNs and clinicopathologic features of their primary breast cancers.