Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded . There are bilateral pleural effusions , which are not significantly changed compared with prior exam . Bibasilar opacities likely reflect atelectasis . No other focal opacities are identified . Mild cardiomegaly is unchanged . Mild vascular engorgement is also stable . There is no pneumothorax . Sternotomy wires are intact . Right upper quadrant clips are present .
    OUTPUT:
    
1 . Bibasilar opacities , likely atelectasis but pneumonia is not excluded . 2 . Small bilateral pleural effusions , mild vascular engorgement , and mild cardiomegaly are unchanged from prior .