Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size appears similar , at least mild to moderately enlarged . Aortic knob remains calcified . Mild interstitial pulmonary edema appears slightly improved compared to previous exam . A moderate size left pleural effusion may be slightly increased in the interval . Trace right pleural effusion is relatively similar . Left basilar consolidative opacity persists with air bronchograms , which may reflect atelectasis or pneumonia . There are no acute osseous abnormalities .
    OUTPUT:
    
Slight interval improvement in mild interstitial pulmonary edema with moderate size left and small right pleural effusions . The left pleural effusion may be slightly increased in the interval . Persistent left basilar consolidative opacity , possibly atelectasis but pneumonia is not excluded .