Figure 4

A 62-year-old woman with EGFR mutation of lung adenocarcinoma in the right upper lobe, where the pathological type (A) is EGFR mutation in exon 19, and CT images (B,C) show a small maximum-diameter lump about 14 mm with obvious pleural retraction and absence of fibrosis. The PCR picture (D) shows that the blue line is similar to the upper line, indicating that the subtype of mutation is exon 19 delection.