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A patient with urothelial bladder carcinoma is reported who suffered from culture proved pulmonary bacillus Calmette-Guerin (BCG) infection 14 months after a single course of intravesical BCG and 11 months after subsequent radical cystectomy for progressive cancer. This unusual case raises the question of the ultimate fate of intravesically instilled BCG and the possible persistence of these mycobacteria in remote organs. Systemic spread and dormant survival at least in some cases are suggested, and therapeutic and diagnostic consequences are discussed.
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Böhle et al. (1992) studied this question.
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