Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes accentuate the size of the cardiac and mediastinal contours , with the heart size appearing moderately enlarged . The aorta is tortuous . Widening of the superior mediastinal contour , particularly the right may be due to the presence of mediastinal fat and prominent vessels . Crowding of the bronchovascular structures is noted , without overt pulmonary edema . Patchy opacities in the left lung base may reflect areas of atelectasis . No large pleural effusion or pneumothorax is identified on this supine exam . Mild degenerative changes are seen in the left glenohumeral joint . No central venous catheter is demonstrated . Patient is status post kyphoplasty at the thoracolumbar junction .
    OUTPUT:
    
1 . No central venous catheter identified . No large pneumothorax is present , though assessment is limited on this supine exam . If there is continued concern , dedicated upright PA view is recommended . 2 . Low lung volumes with left basilar atelectasis and crowding of the bronchovascular structures .