Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Small bilateral left greater than right pleural effusions are new from prior examination . Linear retrocardiac opacity and volume loss are consistent with atelectasis . Postsurgical changes including intact sternotomy wires , surgical clips , and radiopaque device overlying the middle mediastinum are consistent with prior CABG . The right lung is clear . Cardiac borders and mediastinal contours are within normal limits .
    OUTPUT:
    
Small bilateral left greater than right pleural effusions are new from prior examination .