Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . At the right lung base there is pleural calcifications and chronic atelectasis or scarring . No evidence of pneumonia . The heart , mediastinum , and hilum are normal . No pneumothorax . No pleural effusion . No pulmonary vascular congestion .
    OUTPUT:
    
No evidence of pneumonia .