Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild to moderate interstitial abnormality has improved compared to ___ , probably due to resolution of a component of acute pulmonary edema . Heart size is normal . The mediastinal contour is unremarkable . There is no pleural effusion or pneumothorax . There is no evidence of a focal consolidation .
    OUTPUT:
    
Overall improved interstitial abnormality compared to ___ . No focal consolidation . No acute pulmonary edema .