Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the prior radiograph , lung volumes remain low , with unchanged moderate to severe cardiomegaly . Small bilateral effusions are persistent . The left base is slightly better aerated , but a right basilar consolidation persists . No pneumothorax . Multiple small metallic BBs are again seen in the soft tissues overlying the left chest .
    OUTPUT:
    
1 . Slight improvement in the aeration of the left lung base . Persistent small bilateral effusions . 2 . Persistent right basilar opacity , most likely atelectasis , although coexisting infection is not excluded the appropriate clinical setting .