Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The inspiratory lung volumes are slightly decreased from the prior study of ___ . The lungs are symmetrically aerated without focal consolidation concerning for pneumonia , pleural effusion , or pneumothorax . The pulmonary vasculature is not engorged . The cardiac silhouette is top normal in size but stable from the prior study . Minimal calcification at the aortic knob is noted with tortuosity of the thoracic aorta . The mediastinal and hilar contours are otherwise within normal limits . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
No focal consolidation concerning for pneumonia .