Overall, the primary tumor lesions exhibited higher H-scores (evaluation of IHC staining) for TTC17 than the metastatic lymph nodes, whereas CDC42 expression demonstrated the opposite trend: nonmetastatic primary lesions displayed substantially lower CDC42 expression than metastatic tumors and corresponding metastatic lymph nodes (Fig. 5a, b). This evidence concerns the gene TTC17 and metastatic neoplasm.