Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged and there is mild pulmonary vascular redistribution . There is blunting of the left CP angle , which is similar in appearance compared to the study from ___ and could represent pleural thickening or effusion . Biapical scarring is again visualized . There is hazy increased opacity in the left lower lobe that could represent a patchy left lower lobe infiltrate or areas of volume loss . The patient is status post sternotomy with multiple mediastinal clips .
    OUTPUT:
    
Left lower lobe process could be infectious . Recommend followup .