Recently, the stromal invasion grading system was proposed for small adenocarcinomas of ≤2.0 cm. The system is based on the presence or absence of a fibrotic focus, and the extent of invasion into the ...

Both β-catenin and E-cadherin are epithelial cell adhesion molecules. In addition, β-catenin is an important element of the Wnt signal transduction pathway, which has been implicated in embryogenesis ...