Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are provided . Lung volumes are low which limits evaluation . The heart appears moderately enlarged . No large effusion or pneumothorax . No definite signs of pneumonia or CHF . The bony structures appear intact . No free air below the right hemidiaphragm . The mediastinal contour is normal .
    OUTPUT:
    
Cardiomegaly , no convincing signs of pneumonia or CHF . Limited evaluation due to low lung volumes .