Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Lung volumes are low . The heart appears top - normal . No large effusion or pneumothorax . No signs of congestion or edema . Bony structures are intact . No free air below the right hemidiaphragm . Mediastinal contour is normal .
    OUTPUT:
    
Top normal heart size , otherwise unremarkable .