Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Again seen is the lingular opacity , not changed from the prior chest radiograph on ___ . The lungs are otherwise clear . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Again seen is a lingular opacity , not changed from the prior chest radiograph of ___ . A nonurgent CT may be obtained for further evaluation as previously detailed .