Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is moderately enlarged but stable in size from the prior exam . The aorta is again noted to be markedly tortuous . Lung volumes are low however the lungs are clear without pulmonary edema , consolidation , effusion or pneumothorax .
    OUTPUT:
    
Stable cardiomegaly . No edema or pneumonia .