Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Cardiomediastinal silhouette and hilar contours are unchanged . There is mild bibasilar atelectasis as well as linear atelectasis along the minor fissure . Incidental note is made of an azygos fissure . Lungs are otherwise clear . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary process .