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 four hours earlier during the same day . Again identified is status post right upper lobectomy with moderately elevated right - sided diaphragm and local chest wall emphysema in the right shoulder area . No pneumothorax has developed since the preceding study , and no new infiltrates are seen .
    OUTPUT:
    
Stable chest findings as seen on portable followup examination , status post right upper lobectomy .