Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Median sternotomy wires appear intact . A right - sided PICC is again seen and likely terminates in the SVC but the tip is relatively obscured . A right - sided chest tube is again seen . An esophageal drain is in unchanged position . There is stable , moderate cardiomegaly . The lung volumes are low bilaterally . Decreased left retrocardiac opacity likely reflects improving left basilar atelectasis . Obscuration of the left hemidiaphragm likely reflects a small , stable left pleural effusion . Obscuration of the right hemidiaphragm likely reflects an increasing small right pleural effusion . There is new fluid in the right minor fissure . Interval increase in opacity at the right base is consistent with postoperative changes .
    OUTPUT:
    
1 . Improving left basilar atelectasis . 2 . Bilateral , small pleural effusions , increasing on the right . 3 . Increasing opacity at the right base is consistent with postoperative changes .