Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left - sided generator pack projects leads into the right atrium and ventricle . The heart size is normal . The mediastinal contours are within normal limits . The patient is post-median sternotomy . Since ___ , there has been improvement of central pulmonary vascular congestion and mild interstitial edema . A right pleural effusion has improved . There is no pneumothorax . Diffuse reticular opacities throughout both lungs are unchanged , reflective of chronic interstitial disease , better appreciated on dedicated CT performed on ___ . Oral contrast resides within the loops of small and large bowel . A new left middle zone opacity may represent an early consolidation .
    OUTPUT:
    
1 . Possible small left mid-zone consolidation . 2 . Improved mild pulmonary vascular congestion . 3 . Improved right pleural effusion since ___ .