Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal AP and lateral views of the chest were obtained . The lungs are slightly hyperinflated . Increased opacity in the lingula is likely atelectasis . There is no dense consolidation . Small bilateral pleural effusions . Cardiomegaly is unchanged . Pulmonary vascular congestion is improved from ___ . The patient is status post CABG .
    OUTPUT:
    
Lingular opacity likely represents atelectasis , less likely pneumonia . Small bilateral pleural effusions . Improved pulmonary edema from ___ .