CDH2 and metastasis: Integrin β4+ tumor cells associated with liver metastasis were characterized by EpCam+panCK+N-cadherin+E-cadherin+ phenotype (37.1 (6.18; 70.45)%), and their number was higher compared to patients without metastases (0 (0; 0)%, p = 0.0012) and than patients with lung metastases (2.80 (0; 3.45)%, p = 0.0022).