Figure 1.

Immunohistochemical staining for epithelial–mesenchymal markers (magnification ×40). Intensity of E-cadherin cytoplasmatic and Vimentin staining (from left to right): colorless scored 0; pallide-flavens scored 1; yellow scored 2; and brown scored 3. Intensity of E-cadherin membrane staining (from left to right): intensive for continuous staining of the membrane with the creation of a honeycomb-shaped pattern; moderate for continuous staining present in 40–90% of membranes; weak for continuous staining present in 10–39% of membranes; negativefor staining in <10% membranes.