Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Severe cardiac enlargement is unchanged . The mediastinal and hilar contours are similar with enlargement of the pulmonary artery compatible with chronic pulmonary arterial hypertension . Mild pulmonary edema is slightly improved compared to the prior study . Patchy opacities in lung bases may reflect areas of atelectasis . Blunting of the right costophrenic sulcus is suggestive of a trace pleural effusion . No pneumothorax is identified . Multiple left axillary clips are re - demonstrated .
    OUTPUT:
    
Slightly improved mild pulmonary edema with persistent severe cardiomegaly . Chronic enlargement of the pulmonary artery compatible with pulmonary arterial hypertension . Small right pleural effusion . Bibasilar patchy opacities , likely atelectasis .