Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . There is elevation of the left hemidiaphragm with probable diaphragmatic hernia . Overall appearance is stable from prior studies dating back to ___ . Left basilar atelectasis persists . No definite sign of pneumonia or CHF . No large pleural effusion or pneumothorax is seen . Heart size can not be assessed due to subjacent opacity . Mediastinal contour appears grossly stable . No bony abnormalities are seen .
    OUTPUT:
    
Elevated left hemidiaphragm with probable left diaphragmatic hernia , stable from ___ . No signs of pneumonia .