Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . There has been interval removal of the Swan - Ganz catheter and intra-aortic balloon pump . Cardiomegaly is re - demonstrated with left basal consolidation concerning for atelectasis or pneumonia . Associated left pleural effusion is likely present , small to moderate . Right lung is clear . No pneumothorax or edema . Mediastinal contour stable . Bony structures are intact .
    OUTPUT:
    
Left basal opacity likely represents a combination of atelectasis and pneumonia as well as a left pleural effusion . Cardiomegaly is unchanged .