Primary sternal osteomyelitis.

Primary sternal osteomyelitis is a rare condition. Most of the recent cases have been reported in intravenous drug abusers. A case of primary sternal osteomyelitis with no apparent risk factors is reported. Diagnosing sternal osteomyelitis can be difficult, but failure to clinically recognize this type of infection in its early stages can lead to serious sequelae. The diagnosis should be suspected in a young patient presenting with acute inflammatory swelling over the sternum. It is further supported by leukocytosis, elevated sedimentation rate, lateral radiograph of the sternum, and positive Gram's stain. While bacteriological culture results are pending, antibiotic therapy with Staphylococcus aureus coverage should be initiated empirically. Diagnostic evaluation and management of the patients with this entity are briefly discussed.