Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided dual - lumen central venous catheter tip terminates in the proximal right atrium , unchanged . The right PICC has been removed . Mild cardiomegaly again is re - demonstrated . The mediastinal contours are stable . Tracheostomy tube is in unchanged position . There has been interval improvement in the previous pattern of pulmonary edema . Additionally , bilateral pleural effusions have also decreased in size , with persistent small left and trace right pleural effusions noted . Patchy opacities in the lung bases likely reflect atelectasis . There is no pneumothorax .
    OUTPUT:
    
Mild pulmonary edema , improved compared to the prior study . Decreased size of small bilateral pleural effusions , left greater than right . Bibasilar atelectasis .