Figure 1.
Representative immunohistochemical staining for VEGF-C, VEGFR-3 and podoplanin. (A) Negative staining for VEGF-C in OTSCC. (B) OTSCC with Bryne's score 2, displaying strong VEGF-C cytoplasmic expression (staining index, 12). Negative staining for VEGFR-3 (C) in the peritumoral stroma and (D) at the invasive front. Podoplanin expression (E) in the peritumoral stroma and (F) at the invasive front. VEGF-C, vascular endothelial growth factor-C; VEGFR-3, vascular endothelial growth factor receptor-3; OTSCC, oral tongue squamous cell carcinoma.