TACSTD2 and metastatic malignant neoplasm in the lymph nodes: Regarding TROP-2, 83.3% of 5 of 6 cases, which were associated with lymph metastases, were stained positively for TROP-2, which was not statistically significant (also may be related to a small number of cases, but this result is in agreement with Abdou et al. and Guan et al., who found a significant association with of TROP-2 positivity with lymph node metastases.