Pathological findings after preoperative irradiation for carcinoma of the urinary bladder

Pathological descriptions of specimens obtained in 17 patients with urinary bladder carcinoma both at biopsy before preoperative irradiation and after surgery are presented. No positive lymph nodes were found in 16 patients who had lymphadenectomy at the time of surgery. No tumor was found postoperatively in 58.8% of patients and 82.3% had a reduction in tumor stage.