Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post coronary artery bypass graft surgery . Posterior basilar opacity in the left lower lobe has largely , but not entirely , resolved . New patchy opacities are noted in the lingula . Band - like new opacity in the right lower lobe is probably due to minor atelectasis . There is a small pleural effusion on the left , probably decreased somewhat . No definite pleural effusion is visualized on the right side .
    OUTPUT:
    
New lingular opacities concerning for pneumonia in the appropriate setting . No evidence of congestive heart failure .