Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased interstitial markings are seen in the lungs bilaterally , more conspicuous on the right than the left as seen on prior . There are small bilateral pleural effusions . The cardiomediastinal silhouette is stable , top - normal in size . Atherosclerotic calcifications are noted at the aortic arch . No acute osseous abnormalities .
    OUTPUT:
    
Increased interstitial markings throughout the lungs bilaterally , similar when compared to prior and small bilateral pleural effusions . Findings may represent pulmonary edema although atypical infection can have a similar appearance .