Evaluation of tumor response in patients with bladder cancer undergoing combined radiotherapy and chemotherapy

The value of non-invasive methods to evaluate the tumor response in locally advanced bladder cancer has to be established. 34 patients with locally advanced bladder cancer were treated by combined radiotherapy and chemotherapy. The response of the local tumor was assessed by biopsy, deep transurethral resection, partial cystectomy or cystectomy and computerized tomography scan. Persistent tumor or complete response could be diagnosed by computerized tomography scan in 76% of the patients.