Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrate low lung volumes . No convincing opacity is identified concerning for pneumonia . Cardiomediastinal contours are within normal limits . There is no pleural effusion . Flowing anterior osteophytes is suggestive of diffuse idiopathic skeletal hyperostosis . No acute osseous abnormality is identified .
    OUTPUT:
    
Low lung volumes . No convincing opacity concerning for infection .