Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes , and there is elevation of the right hemidiaphragm . Airspace opacity in the right lower lung may reflect atelectasis or focal consolidation favoring the latter . There is no pleural effusion , or pneumothorax . The cardiac silhouette is normal in size , accentuated by low volumes . The mediastinal contours are normal . Scoliosis may be positional .
    OUTPUT:
    
1 . Low lung volumes , with airspace opacity which could represent hemorrhage , contusion , or pneumonia , or less likely atelectasis ; recommend repeat views with better chest expansion . 2 . Scoliosis may be positional , recommend clinical correlation for back pain .