Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . There is moderate elevation of the right hemidiaphragm which appears stable from prior exam . Retrocardiac density likely reflects a hiatal hernia . The heart is top normal in size . There is no definite sign of focal consolidation , effusion , or pneumothorax . No signs of CHF . Faint linear density in the right mid - to - upper lung is stable and likely represents an area of scarring . Bony structures appear grossly intact . An old mild compression in the upper lumbar spine is seen on the lateral view , unchanged from prior .
    OUTPUT:
    
No acute findings .