Bilateral parotid glands infection caused by Calmette-Guerin Bacillus after intravesical therapy for recurrent bladder cancer: a case report.

The Calmette--Guerin Bacillus (BCG), an attenuated live strain of Mycobacterium bovis was originally developed by Albert Leon Charles Calmette and Camile Guerin in 1925 as a vaccine for tuberculosis. At the present, BCG is widely used as a complementary therapy for superficial bladder neoplasms. This treatment is considered to be safe and well tolerated although local and distal complications may appear. In 2003, Diaz et al. reported in the Spanish language, for the first time, a case of unilateral infection of the parotid gland caused by BCG. We reviewed the English literature from 1975 to 2015 and found no other cases of such infection, as it is extremely rare. In this article we report a well-documented case of a bilateral infection of the