Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate right pleural effusion with overlying atelectasis is re - demonstrated . Right juxta hilar fibrotic changes ) could right upper lung atelectasis are again seen as long as right apical opacity . Right hilar mass and right lower lobe atelectasis / obstruction , better assessed on prior CT . The left lung is hyperinflated , and aside from mild left base atelectasis / scarring , is grossly clear . Cardiac and mediastinal silhouettes are stable . No frank pulmonary edema is seen . The patient is status post median sternotomy and cardiac valve replacement . Single lead left - sided pacemaker is stable in position .
    OUTPUT:
    
No significant interval change .