Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate similar cardiac prominence as compared to ___ . Thoracic aorta is persistently tortuous with atherosclerotic calcifications in the arch . The lungs are clear . There is no pneumothorax , vascular congestion , or large effusion . There may be mild dependent atelectasis posteriorly in the lower lung on the lateral view .
    OUTPUT:
    
Stable mild cardiomegaly . No definite acute cardiopulmonary process .