Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest demonstrate improved aeration at the left lung base when compared to prior radiograph dated ___ . Additional improved aeration within the right middle lobe is noted . No new focal consolidation is identified . Heart size is top normal . Obscuration of bilateral costophrenic angles compatible with pleural effusions bilaterally , decreased since the prior examination . Mild interstitial pulmonary edema persists , though improved since prior examination . There is no pneumothorax . The visualized osseous structures demonstrate no acute abnormality .
    OUTPUT:
    
Improved aeration of the left lower lobe and right middle lobe . No new focal consolidation . Persistent mild interstitial edema and improved bilateral pleural effusions .