ABSTRACT
Indications for radiotherapy In the UK there are approximately 10 000 new cases of bladder cancer a year. The majority (85 per cent) are superficial bladder cancers confined to the mucosa with a 5-year survival rate of 80-90 per cent. However, 70 per cent recur and of these, 10-15 per cent develop muscle invasive bladder cancers within 5 years. Carcinoma in situ is usually more aggressive with up to 50 per cent progressing to muscle invasive cancers within 5 years. In the past 30 years, 5-year survival rates for muscle invasive bladder cancer have increased from 40 per cent to 60 per cent.
