Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: 2 views of the chest demonstrate bibasilar opacities and small bibasilar pleural effusion . No recent comparison is available . Increased interstitial densities bilaterally indicates parenchymal scarring / fibrosis . Calcified aortic knob is noted . Heart size is top - normal . Hilar and mediastinal contours are within normal limits .
    OUTPUT:
    
Bibasilar opacities concerning for pneumonia , with small bilateral pleural effusions .