Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest ___ at 13 :01 are submitted .
    OUTPUT:
    
Interval removal of the right chest tube with improved aeration at both lung bases and stable postoperative changes in the right hemithorax . No pneumothorax is seen . Overall cardiac and mediastinal contours are stable . No pulmonary edema . Degenerative changes in the thoracolumbar spine with incompletely visualized spinal hardware overlying the lower thoracic and upper lumbar spine .