Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right PICC line ends close to the superior cavoatrial junction . Mild enlargement cardiac silhouette unchanged . Left pleural effusion small on the left if any , in the setting of chronic elevation of the left hemidiaphragm laterally probably due to pleural scarring . The lungs are unchanged with minimal retrocardiac atelectasis . No pulmonary edema .
    OUTPUT:
    
No acute cardiopulmonary process .