Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are within normal limits . Atherosclerotic calcifications are noted at the aortic knob . Pulmonary vasculature is not engorged . Hyperinflation of the lungs suggests underlying COPD . Lungs are clear without focal consolidation . Calcified granulomas in the periphery of the right mid lung field are unchanged . No pleural effusion or pneumothorax is present . Degenerative changes are seen within the imaged thoracic spine as well as within the right AC joint .
    OUTPUT:
    
No acute cardiopulmonary abnormality .