Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are reduced compared to the previous exam , which accentuates the size of the cardiac silhouette . Heart size remains mildly enlarged . Mediastinal and hilar contours are unremarkable . The pulmonary vasculature is normal . Patchy opacities are demonstrated in both lung bases , more so on the right . No pneumothorax or pleural effusion is present . There are no acute osseous abnormalities .
    OUTPUT:
    
Patchy opacities in both lung bases , more so on the right . These findings are concerning for pneumonia .