Fig. 2From: HER2/neu (ERBB2) expression and gene amplification correlates with better survival in esophageal adenocarcinomaHeatmap showing heterogeneity of HER2 expression between the luminal and the infiltration area of the primary tumor. Blue area represents absence of HER2 expression (IHC score 0); light red immunohistochemistry (IHC) score 2+, FISH confirmation negative; medium red IHC score 2+, FISH positive; dark red IHC score 3 +Back to article page