Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tracheostomy tube terminates approximately 5 .5 cm from the carina . Right PICC tip terminates in the upper / mid SVC . Patient is status post median sternotomy . Mild enlargement of cardiac silhouette is present . Mild pulmonary edema is present along with bilateral pleural effusions , moderate in size on the left and layering , and small on the right . Retrocardiac opacity likely reflects an area atelectasis . Infection is difficult to exclude . No pneumothorax is clearly identified . No acute osseous abnormality is visualized .
    OUTPUT:
    
1 . Mild pulmonary edema with moderate size left and small right pleural effusions . 2 . Retrocardiac opacity may reflect compressive atelectasis though infection is difficult to exclude .