Primary septic arthritis of the manubriosternal joint in a heroin user.

A 20-year-old heroin user developed staphylococcus septic arthritis of the manubrium joint. The diagnosis was established by a culture of the infected tissue and blood culture. The clinical impression was aided by 99mTc radionuclide scintimetry. Early diagnosis localized the infection. Immediate antibiotic therapy solved a problem in the sternum that seems not to have been reported in the English literature.