Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post left lower lobectomy . Cardiac silhouette size is normal . Mediastinal and hilar contours are unchanged , with redemonstration of leftward shift of mediastinal structures . Pulmonary vascularity is normal . Small left pleural effusion persists , unchanged . Lungs are clear without focal consolidation . No pneumothorax or right - sided pleural effusion is present . Focal expansile lesion involving the lateral aspect of the left ___ rib may reflect an area of fibrous dysplasia , better seen on prior CT , and is unchanged .
    OUTPUT:
    
Small left pleural effusion with expected left lower lobectomy changes . No new focal consolidation to suggest pneumonia .