Disseminated Bacillus Calmette-Guérin (BCG) infection and acute exacerbation of interstitial pneumonitis: an autopsy case report and literature review.

Intravesical administration of Bacillus Calmette-Guérin (BCG) has proven useful for treatment and prevention of recurrence of superficial bladder cancer and in situ carcinoma. However, fatal side effects such as disseminated infections may occur.