Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal view of the chest demonstrates a left pectoral pacemaker with leads terminating in the right atrium and right ventricle . A left ventricular assist device is in place and unchanged in position . The cardiac silhouette is enlarged but unchanged . There is mild pulmonary edema . There are small bilateral pleural effusions . A more hazy opacity seen at the right lung base is noted . There is no pneumothorax . The mediastinal contours are unchanged .
    OUTPUT:
    
1 . Hazy opacity at the right lung base may reflect atelectasis , although , pneumonia should be considered . 2 . Unchanged appearance of the left ventricular assist device .