Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a stable small right apical pneumothorax . The patient is status post CABG with intact sternotomy wires . Bilateral chest tubes are unchanged in positioning . A dobhoff tube is seen coursing below the diaphragm , however the tip is not visualized on this image . There is a stable postoperative appearance of the cardiomediastinal silhouette . There is bibasilar atelectasis , which is unchanged compared to prior . The lungs are otherwise clear . The pulmonary vasculature is normal . No pleural effusion is seen .
    OUTPUT:
    
1 . Status post CABG with unchanged positioning of all lines and tubes . 2 . Stable small right apical pneumothorax . 3 . Bibasilar atelectasis .