Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is rotated to the right . The patient is status post median sternotomy and CABG . Prominence and slight indistinctness of the hila likely relates to pulmonary vascular engorgement . There is mild interstitial edema . No large pleural effusion is seen . Left base retrocardiac opacity most likely relates to overlapping vessels and possible atelectasis , although on developing consolidation is not excluded in the appropriate clinical setting . The lateral view is suboptimal due to patient 's overlying arm . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Pulmonary vascular engorgement and interstitial edema . Patchy left base retrocardiac opacity most likely relates to vascular structures and possible atelectasis however , developing consolidation is not excluded in the appropriate clinical setting .