Primary tubercular osteomyelitis of the sternum.

Tubercular involvement of the sternum, leading to osteomyelitis, is a rarely described entity even in countries where tuberculosis is endemic. Presentation in pediatric age group is even more uncommon. We describe a 12 year old girl who presented with a mass over the manubruim sterni and fever. CT chest demonstrated a soft tissue mass in the anterior mediastinum, eroding the cortex of the manubrium. Tubercular etiology was suggested by presence of epithelioid granulomas and acid fast bacilli in the Ziehl-Neelsen staining of the aspirate from the lesion. The patient responded well to antitubercular treatment.