BSG and metastatic malignant neoplasm in the lymph nodes: However, the conclusion that CD147 positivity rate was higher in prostatic cancer tissues vs. benign prostatic hyperplasia tissues, high Gleason score vs. low Gleason score, and lymph node metastasis vs. non-lymph node metastasis should be interpreted with caution and needs to be confirmed owing to the different results in the subgroup analyses.