Implications for pelvic lymph node irradiation in definitive chemoradiotherapy of node negative muscle invasive bladder cancer based on predictive factors of clinicopathologic discrepancy

To identify pre-surgical imaging predictive value and factors associated with the clinicopathologic discrepancy for implication of definitive pelvic radiotherapy in clinically node-negative bladder cancer. The documented data of bladder cancer patients who underwent radical cystectomy plus pelvic lymphadenectomy were collected retrospectively. Patients’ characteristics, last imaging, pathology reports, disease-specific survival and overall survival were retrieved. From 142 patients, pre-surgical imaging had a sensitivity of 76.4