Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . There are no radiographic findings to suggest CHF . Some calcification is seen at the aortic knob . The cardiac silhouette is normal in size . Mild degenerative changes are seen along the spine .
    OUTPUT:
    
No acute cardiopulmonary process . No radiographic evidence to suggest CHF .