Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Linear atelectasis or scarring in the left lung base and inferior lingula is unchanged from ___ . No new opacity is seen . There is no pleural effusion or pneumothorax . Heart size is normal . Mediastinal silhouette and hilar contours are normal .
    OUTPUT:
    
No acute cardiopulmonary process .