TACSTD2 and neoplasm: High Trop2 expression in cytoplasm was significantly correlated with tumor location (p = 0.046), lymph nodes metastasis (p = 0.027), and TNM stage (p = 0.031), while high Trop2 expression in stroma was remarkably associated with perineural invasion (p = 0.024), vascular invasion (p = 0.047), lymph nodes metastasis (p = 0.020) and TNM stage (p = 0.003).