Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is focal opacity within the right lower lung . Lung volumes are decreased . No pleural effusion or pneumothorax is seen . The heart is normal in size . Aortic arch vascular calcifications are seen . Biapical pleural thickening is noted . Mild degenerative change is present within bilateral glenohumeral joints .
    OUTPUT:
    
Increased opacity within the right lower lung , consistent with acute infectious process vs . aspiration .