FINDINGS:
Right-sided chest tube in similar position abutting the medial mediastinum. 
 Moderate subcutaneous emphysema in the right chest wall has redistributed. 
 Interval development of mild interstitial edema and increasing right lower
 lobe likely atelectasis versus alveolar edema.  No significant pneumothorax.

IMPRESSION:
Persistent low lung volumes with new mild interstitial edema.