Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low ; however , there is no focal consolidation . Mild enlargement of the cardiac silhouette has developed since ___ , accompanied by mild edema . Aorta is tortuous and unfolded . No pleural effusions or pneumothorax . Multilevel degenerative changes in the thoracic spine .
    OUTPUT:
    
New mild CHF .