Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged , unchanged . Mediastinal contour similar with tortuosity of the thoracic aorta again noted . Perihilar haziness with vascular indistinctness and increased interstitial opacities are compatible with moderate interstitial pulmonary edema , worse in the interval . Small bilateral pleural effusions persist , not substantially changed . More focal patchy opacities in the lung bases may reflect areas of infection or aspiration . No pneumothorax is present . Degenerative changes are noted within both acromioclavicular joints as well as within the thoracic spine .
    OUTPUT:
    
Worsening moderate interstitial pulmonary edema with similar appearance of small bilateral pleural effusions . More focal bibasilar airspace opacities could reflect infection or aspiration .