Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . The lungs are clear without focal consolidation , effusion , pneumothorax . No signs of CHF . Heart size is mildly enlarged . The mediastinal contour is unremarkable though atherosclerotic calcifications are noted along the aortic knob . The imaged osseous structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
Mild cardiomegaly , otherwise unremarkable .