Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal and the mediastinal and hilar contours are unremarkable . The pulmonary vascularity is normal . The patient is status post left lower lobectomy . Blunting of the left costophrenic angle is chronic , and likely reflective of pleural thickening . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is identified . No acute osseous abnormalities are visualized .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No displaced rib fracture is seen , although if there is continued concern , a dedicated rib series is recommended .