Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The patient is status post median sternotomy and CABG . The cardiac silhouette is enlarged . The aorta is calcified and tortuous . Cardiac and mediastinal silhouettes are stable since the prior study . There is perihilar vascular prominence suggestive of pulmonary vascular congestion with possible minimal interstitial edema . Lateral view is suboptimal due to patient 's overlying arm per the radiology technologist , the patient was unable to lift arms for the lateral view . No pleural effusion or pneumothorax is seen . No definite focal consolidation although an infectious process at the left lung base could be difficult to exclude in the appropriate clinical setting . No displaced fracture is seen .
    OUTPUT:
    
Pulmonary vascular congestion with possible minimal interstitial edema , superimposed infectious process is difficult to exclude at left lung base . No displaced rib fracture is seen , although if clinical concern for rib fracture persists , suggest dedicated rib series , which is more sensitive .