Figure 5From: Immunohistochemical detection of mutations in the epidermal growth factor receptor gene in lung adenocarcinomas using mutation-specific antibodiesA case of predominant acinar adenocarcinoma with normal EGFR. A and B DNA sequencing shown normal EGFR exon 21 and 19, respectively, in the region that is frequently subject to mutation. C and D Tumor cells were not stained with either L858R-specfic or E746_A750del-specific antibodies, respectively (original magnification x200).Back to article page