Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . Linear scarring is seen within the left lung base lung with chronic blunting of the left costophrenic angle and pleural thickening compatible with prior empyema and decortication . Remainder the lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .