Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . There is no pneumothorax . The heart appears large but cardiac size may be exaggerated by AP portable technique . The aorta is calcified . Mediastinal structures are otherwise unremarkable . The bony thorax is grossly intact
    OUTPUT:
    
No active pulmonary disease . Prominent cardiac silhouette .