Would you ever consider chemoradiation for bladder preservation in someone who has had prior LDR prostate brachytherapy?  

The board answer is no, he should have a cystoprostatectomy, but that is often not practical. Bladder cancers may arise in men after the brachytherapy either as a result of that treatment or incidentally. The radiation induced cancers appear more than ten years later by which time the men may be in ...