Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . The cardiomediastinal silhouette , hilar contours , and pleural surfaces are normal . A tiny left pleural effusion is best seen on lateral radiograph . There is no evidence of pneumothorax . An old healed fracture of the right posterior ninth rib is re-demonstrated . There is no evidence of pneumothorax .
    OUTPUT:
    
A tiny left pleural effusion is seen . There is no evidence of pneumothorax . Pulmonary embolism can not be evaluated on routine radiograph of the chest .