35-year-old female with history of ALL in remission, concern for osteonecrosis of the sternum. Multiple reconstructions of the sternum demonstrate homogeneously low signal on T1 and T2 weighted images of the sternum and vertebral bodies, which is consistent with red marrow reconversion. There is no discrete evidence of osteonecrosis or neoplastic infiltration. Postcontrast images demonstrate very slight enhancement of the sternum, which is within normal limits. Incidental note is made of a subcentimeter vertebral body hemangioma in the lower thoracic spine.
Red marrow reconversion of the sternum and vertebral bodies, which is likely post treatment related. There is no discrete evidence of osteonecrosis or neoplastic infiltration. However, bony architecture of the sternum would be better evaluated with CT.