Figure 4From: Highly sensitive proximity mediated immunoassay reveals HER2 status conversion in the circulating tumor cells of metastatic breast cancer patients Concordance of CEER with IHC in primary breast tumors. The distribution of HER2 expression based on CEER in each IHC sub-group are shown in (a). The quantitative distribution within each sub-group is shown in (c). There were 17% (38/227) discordant calls between IHC and CEER HER2 status (C - concordance, D - discordance). The outcome of IP-W analysis of 100 samples (including all with discordant calls) are summarized in (e). The concordance between CEER and IP-W adjusted HER status are shown in (b) and (d). Representative IP-W images for each sub-group are shown in (e).Back to article page