Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged . Mediastinal and hilar contours appear unchanged with enlargement of the pulmonary arteries , better assessed on the previous CT , compatible with pulmonary arterial hypertension . There is upper zone vascular redistribution without overt pulmonary edema . Chronic interstitial opacities are again noted predominantly along the periphery and lung bases with bronchiectasis also noted in the lower lobes . Patchy ill - defined opacities are re - demonstrated in both lower lung fields as well as within the upper lobes bilaterally , more so on the right . Overall , the findings within the left lung base and left upper lobe appear minimally improved , with the opacities in the right lung base perhaps slightly worse . Small bilateral pleural effusions are likely present . No pneumothorax is demonstrated . Remote left - sided rib rib fractures are again seen .
    OUTPUT:
    
Patchy ill - defined opacities within both upper lobes , more so on the right , as well as within both lung bases , findings concerning for superimposed infection on a background of chronic interstitial abnormality and bronchiectasis . Small bilateral pleural effusions .