Our results demonstrate positive co-expression of PDGF and VEGFR2 or EGFR in tumor tissues from early (UICC stage I and II) and advanced (UICC stage III) stage patients (PDGF: Cy3, red; VEGFR2 and EGFR: Alexa 488, green; Figure 3). The gene discussed is KDR; the disease is neoplasm.