RB1 and neoplasm: In contrast, LLNM rates increased when the tumor was located closer to the anal side, with rates of 7.4% for Ra, 16.3% for Rb, and 29.7% for P. In the lateral pelvic regions, the metastasis rates were higher in the 263D and 283 stations, regardless of tumor location, with P tumors showing particularly high rates at 263D (10.8%) and 283 (18.9%).