Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Post - right lower lobe resection appearance with elevation of the right hemidiaphragm and rightward mediastinal shift . Mild right basal atelectasis . No pleural effusion . No pneumothorax . The heart is probably normal in size . The descending aorta is tortuous or ectatic . Right rib fracture is chronic .
    OUTPUT:
    
Expected post-surgical changes . No effusion .