Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest ___ at 10 : 12 are submitted .
    OUTPUT:
    
The left chest tube remains in place . The left apical pneumothorax is at least a stable , if not slightly smaller . A right - sided Port - A - Cath is unchanged in position . The patient is status post median sternotomy for CABG and aortic valve replacement with stable postoperative cardiac and mediastinal contours . The main pulmonary artery is prominent which may reflect underlying pulmonary arterial hypertension . Lungs are hyperinflated with parenchymal scarring consistent with known underlying emphysema . More rounded opacities at both lung bases likely correspond to known metastatic disease in this patient with rectal cancer . There is patchy increasing opacity at the right costophrenic angle which could reflect an area of atelectasis , although aspiration or early pneumonia should be considered . Blunting of both posterior costophrenic angles may reflect small effusions or pleural thickening . No pulmonary edema .