Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrates median sternotomy wires which appear intact . Relative to prior examination , a right internal jugular central venous catheter has been removed . Aeration of the left hemithorax is improved . No focal consolidation convincing for pneumonia is identified . There is no large pleural effusion , pneumothorax , or evidence of pulmonary edema . No air under the right hemidiaphragm is identified .
    OUTPUT:
    
Interval improved aeration of the left hemidiaphragm . Patient is status post CABG with otherwise stable overall appearance of the chest . No air under the right hemidiaphragm .