Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable AP upright view of the chest was obtained . Heart is normal size , and cardiomediastinal contour is notable for dense calcifications in the aortic arch . Lungs are hyperinflated . There is parenchymal scarring without focal consolidation , pleural effusion , or pneumothorax . Pulmonary vasculature is within normal limits .
    OUTPUT:
    
No acute intrathoracic abnormality .