Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Calcifications of the aortic knob are noted . The heart is normal in size . The hila are unremarkable . There is no pleural effusion or pneumothorax . The lungs are well expanded and clear without focal consolidation concerning for pneumonia . The upper abdomen is unremarkable . The visualized osseous structures are within normal limits .
    OUTPUT:
    
No acute cardiopulmonary process .