Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Cardiomegaly is again noted . The mediastinal contour appears normal . There are bilateral pleural effusions , moderate on the right and small on the left . There is rib compressive atelectasis in the right lower lung . Difficult to exclude an underlying pneumonia . No signs of edema or congestion . No pneumothorax . Bony structures are intact .
    OUTPUT:
    
Bilateral pleural effusions , moderate on the right and small on left . Stable cardiomegaly . Right basal atelectasis , difficult to exclude underlying pneumonia .