Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild to moderate persistent elevation of the right hemidiaphragm compared to the left , which is unchanged from the prior study . A right Port - A - Cath is unchanged in position with the tip terminating in the proximal right atrium . There is no focal opacity concerning for pneumonia , pleural effusion , or pneumothorax . A streaky opacity on the lateral radiograph in the anterior lung base likely represents minor atelectasis . The pulmonary vasculature is not engorged . The cardiac silhouette is mildly enlarged but stable . The mediastinal and hilar contours are within normal limits . The trachea is midline .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .