Figure 2: a) - Bone scan images of a 56 yr old female post sternotomy female show a) increased tracer uptake in manubrium sternum corresponding to the site of surgical intervention b) Increased tracer uptake in lower sternal region with cold defect. c) Hot spots in left 7th, 8th sternocostal joint region extending along the left 8th rib. b) Focal hot spots seen in multiple bilateral costochondral junctions – suggesting costochondritis. b) Gallium scan images of the same patient show incongruent linear increased gallium uptake extending from posterior aspect of manubrium sternum to lower end of sternum. There is abnormal focal gallium uptake in left 7th and 8th costosternal region with extension along the medial end of left 8th rib. Findings are suggestive of sternal OM with multiple pockets of soft tissue infection in anterior mediastinum.