Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy . Bibasilar opacities persist which may be due to atelectasis and scarring . No definite new focal consolidation is seen although would be difficult to exclude on the left . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable . Multiple old right - sided rib deformities are again seen .
    OUTPUT:
    
Similar appearance of the chest compared ___ without definite new focal consolidation , although one would be difficult to exclude at the left lung base .