Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart size and cardiomediastinal contours are normal . No focal consolidation , pleural effusion , or pneumothorax . No radiopaque foreign body . Degenerative changes of the thoracic spine and the right acromioclavicular joint are unchanged .
    OUTPUT:
    
No definite signs of pneumonia or CHF .