Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is an abnormal density seen within the anterior mediastinum best viewed on the lateral radiograph seen immediately posterior to the sternum . Lungs are well expanded and clear . There is no pleural effusion or pneumothorax . The cardiac silhouette is within normal limits .
    OUTPUT:
    
Abnormal density in the anterior mediastinal directly posterior to the sternum is suspicious for a mass . Further evaluation with cross - sectional imaging ( CT ) is recommended . These findings were reported to Dr . ___ at 10 :37 a .m . via phone by ___ .