Retroperitoneal abscess due to disseminated Bacille Calmette-Guérin infection

Abstract

Disseminated mycobacterial infection after Bacille Calmette-Guérin (BCG) vaccination is a rare disorder, usually presenting with fever, weight loss, anemia, lymphadenopathy and hepatosplenomegaly. We report a case of disseminated BCG infection in a 28-month-old girl with prolonged fever and abdominal mass due to retroperitoneal abscess. Appropriate therapy resulted in a good response. This is the second reported case of retroperitoneal abscess complicating BCG vaccination.