Phospho-cortactin staining intensity was absent/negative in 5 (17.2%), low in 9 (31.0%) and high in 15 (51.8%) of primary tumors, while staining was negative in 0, low in 8 (22.9%) and high in 27 (77.1%) metastatic tumors. This evidence concerns the gene CTTN and metastatic neoplasm.