Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: New moderate size left and trace right pleural effusions are present with associated compressive atelectasis in the left lung base . Remainder of the lungs are clear . Cardiac and mediastinal contours are unchanged with the heart size within normal limits . Pulmonary vasculature is not engorged . There is no pneumothorax . No acute osseous abnormalities demonstrated .
    OUTPUT:
    
New bilateral pleural effusions , moderate in size on the left and trace on the right , with compressive left basilar atelectasis .