Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Areas of scarring in the lower lungs are mild . No definite sign of pneumonic consolidation , effusion or pneumothorax . Heart size is top - normal . Mediastinal contours unremarkable . Bony structures appear grossly intact . Left AC joint arthropathy noted as well as DISH related changes of the thoracic spine .
    OUTPUT:
    
No acute intrathoracic process