KDR and exocrine pancreatic carcinoma: The expression of several CD44v including CD44v6 is known to correlate with advanced stages of colorectal cancer, breast cancer, lung cancer, thyroid carcinoma, hepatocellular carcinoma, gall bladder carcinoma, ovarian carcinoma, and endometrial cancer.17 CD44v6 expression in CD44 negative Bsp73 AS pancreatic carcinoma cells conferred metastatic potential to these cells.18 One explanation for the participation of CD44v6 in the metastatic process of such pancreatic carcinoma cells is its involvement in Met and VEGFR‐2 signaling.