Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Lung volumes are low limiting assessment . Allowing for this , the lungs are clear . No convincing evidence for pneumonia or edema . No large effusion or pneumothorax . The heart is top - normal in size . Mediastinal contour is unremarkable . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Top normal heart size , otherwise unremarkable .