Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest film ___ at 12 :34 is submitted .
    OUTPUT:
    
Interval extubation , removal of mediastinal drains , removal of the left chest tube , and removal of the right internal jugular Swan___ catheter . Small left apical pneumothorax . Status post median sternotomy for CABG with stable postoperative cardiac and mediastinal contours . Patchy bibasilar opacities with associated effusion , at least on the right , are again seen suggestive of lower lobe atelectasis . No pulmonary edema .