Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes . This accentuates the size of the cardiac silhouette which is mildly enlarged . The mediastinal contours are unremarkable . There is mild pulmonary edema , but no pleural effusion or pneumothorax is identified . Bibasilar airspace opacities likely reflect atelectasis . No acute osseous abnormalities are demonstrated . Surgical anchors project over the right humeral head indicating prior rotator cuff repair .
    OUTPUT:
    
Low lung volumes . Mild pulmonary edema .