Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Previously seen left lower lobe pneumonia has improved . Small scattered nodular opacities in the left lower lobe , consistent with known metastatic pulmonary nodules are stable . There is mild increase in the left basal atelectasis / scarring and small left pleural effusion compared to the prior study . Left mediastinal contour abnormality , relates to the known prevascular adenopathy seen on prior CT . Multiple intact sternotomy wires and mediastinal surgical clips relate to prior CABG . Small right pleural effusion is new .
    OUTPUT:
    
1 . Interval improvement in the left lower lobe pneumonia . Minimal increase in the small left pleural effusion and left basal atelectasis . 2 . Mediastinal adenopathy and left lower lobe pulmonary nodules , in keeping with the history of metastatic disease .