Figure 1From: Pathological complete response after neoadjuvant chemotherapy with trastuzumab-containing regimen in gastric cancer: a case reportImmunohistochemical study of HER2 protein in biopsied specimen before chemotherapy. The moderately differentiated adenocarcinoma cells infiltrated the gastric submucosa and overexpressed HER2 (3+ by HercepTest) on the cell membrane (immunoperoxidase stain, 200×).Back to article page