On the other hand, discordant FNA-HER2 statuses of metastatic ALNs were found in 20.6% (28/136) of metastatic ALNs, which is consistent with values (16–34%) reported in previous studies that used IHC/FISH analysis for the evaluation of the HER2 statuses of primary and metastatic tumors [29]–[31]. This evidence concerns the gene ERBB2 and metastatic neoplasm.