Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are normal . Pulmonary vasculature is normal . The lungs are clear . Left lateral pleural lipoma accounts for the opacity in the periphery of the left lung base and is unchanged . No pleural effusion or pneumothorax is seen . No acute osseous abnormalities seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .