Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . The heart is mildly enlarged , similar to prior , with stable cardiomediastinal contours . Left apical scarring is similar to prior . Lungs are otherwise clear without focal or diffuse abnormality . No pleural effusion or pneumothorax is visualized . The pulmonary vasculature is unremarkable . Left humeral head screws are incompletely imaged .
    OUTPUT:
    
No acute cardiopulmonary process .