Superinfection of chronic multifocal osteomyelitis with Enterobacter cloacae.

A case is presented of a 6-year-old boy from Nigeria who developed chronic multifocal osteomyelitis with bilateral and symmetrical proximal humeral involvement. Superimposed changes of acute osteomyelitis were noted on the histopathological evaluation of the lesions. Cultures from both sides were positive for Enterobacter cloacae, which was presumably contracted during intravenous therapy for typhoid fever in Nigeria 1 month prior to his presentation.