Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A frontal upright portable view of the chest was obtained . Increased opacity at the right lung base is pleural effusion and adjacent atelectasis , worse or in a different distribution compared to ___ but improved from ___ . The right upper lung zone and left lung are clear . There is no pneumothorax . Cardiac and mediastinal silhouettes are stable allowing for patient rotation .
    OUTPUT:
    
1 . No pneumothorax . 2 . Right effusion and atelectasis are increased from ___ , but improved from ___ after thoracentesis . Findings were discussed with Dr . ___ by phone at 4 :20 p .m . on ___ .