Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Continued interval improvement in the diffuse lung abnormalities since ___ reflecting acute disease on chronic interstitial lung disease and emphysema . Moderate cardiomegaly is overall unchanged . The thoracic aorta is slightly tortuous or ectatic , also unchanged . Mediastinal and hilar contours are overall similar . The right PICC line has since been removed compared to the prior radiograph . No pneumothorax . No pleural effusions .
    OUTPUT:
    
Interval continued improvement in diffuse acute and chronic lung abnormalities .