Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP age upright chest film ___ at 12 :30 is submitted .
    OUTPUT:
    
Interval extubation . Interval removal of the mediastinal drains , left chest tube , nasogastric tube and right internal jugular Swan - Ganz catheter . A right internal jugular introducing catheter remains in place with its tip in the proximal SVC . Status post median sternotomy for CABG and valve replacement with stable postoperative cardiac and mediastinal contours . Patchy bibasilar opacities have appeared likely reflecting atelectasis in the setting of diminished lung volumes . Possible small left effusion . Small left apical pneumothorax .