Radiotherapy is rarely used for T1 bladder cancer. We discuss the potential reasons for this, the current evidence, and make suggestions for future research. PATIENT SUMMARY: Despite its success in muscle-invasive disease, radiotherapy is rarely used for non-muscle-invasive bladder cancer. We discuss the current evidence and suggest that, with further research, radiotherapy holds much promise as a bladder-preserving strategy.
Keywords: Non–muscle-invasive bladder cancer; Radiotherapy; T1 bladder cancer.
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