Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a non-specific opacity overlying the heart on the lateral view only . Otherwise , the lungs are clear with no evidence of a consolidation , effusion , or pneumothorax . Cardiac and mediastinal silhouettes are normal . No acute fractures are identified .
    OUTPUT:
    
There is a non-specific opacity overlying overlying the heart on the lateral view . Short term followup CXR is recommended if suspicion for an acute infection persists .