Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in sitting semi-upright position . Comparison is made with the next preceding similar study obtained five hours earlier during the same day . During the examination interval , the Swan - Ganz catheter has been withdrawn , but the right internal jugular approach sheath remains in place . No pneumothorax has developed . The previously described chest tubes advanced from below remain in place . No evidence of increased pleural effusions and no new parenchymal infiltrates are seen . The moderate enlargement of the heart shadow remains now stable and has not increased further since the other postoperative chest examinations . In none of the postoperative portable chest examination after the latest operation was any striking mediastinal widening reported . Increase of the heart shadow postoperatively was observed already on the first examination and remains now stable . Review of the patient 's data indicates that the hematocrit had dropped from preoperative ___ to about ___ in conjunction with the operation , but is now again on the way up and reached values of 28 at the time of the latest chest x-ray .
    OUTPUT:
    
Stable postoperative chest findings . No concern for new hemorrhage , no pneumothorax .