Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable AP supine view of the chest was obtained . The patient is status post left chest tube placement with decreased size of the left pneumothorax . A small right apical pneumothorax is also likely present . There are persistent bilateral areas of plate - like atelectasis . Extensive pneumomediastinum with extension of the air into the superficial and deep soft tissues of the neck and retroperitoneal gas is unchanged . There is no large effusion . Cardiomediastinal silhouette is stable .
    OUTPUT:
    
1 . Status post left chest tube placement with decreased left pneumothorax . 2 . Small right apical pneumothorax . 3 . Persistent bilateral plate - like atelectasis . 4 . Large retroperitoneal free air ( as seen on prior CT abdomen ) , with superior extension into the mediastinum and the soft tissues of the neck .