Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are unchanged , with bibasilar atelectasis appearing increased on the left where there are dense air bronchograms . Small left pleural effusion is present . There is mild pulmonary edema . There is no pneumothorax . The cardiac silhouette remains mildly enlarged , the mediastinal contours are exaggerated by portable technique . A PTBD has been placed in the interim . There is no intraperitoneal free air . There has been interval improvement in gaseous distention of the stomach .
    OUTPUT:
    
1 . Slight increase in bibasilar atelectasis , and unchanged mild pulmonary edema . 2 . Interval PTBD placement , without intraperitoneal free air .