Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to prior , there is free air under the right hemidiaphragm , also present in retrospect on ___ . The lung volumes are similar . Pulmonary edema appears improved from prior . Mild left lower lobe atelectasis is likely . Minimal right pneumothorax is seen . The heart and the mediastinum are mildly enlarged , slightly increased in size compared to prior , which may be due to patient positioning . There has been interval removal of chest tubes and pulmonary artery catheter . Right - sided introducer is in place and terminates in mid SVC .
    OUTPUT:
    
1 . Pneumoperitoneum . 2 . Minimal right pneumothorax .