Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Allowing for this factor , cardiomediastinal contours are within normal limits and without change since the prior study . With the exception of a new linear opacity in the right mid lung region , the lungs appear clear , with no focal areas of consolidation . There are no pleural effusions . Scoliosis is again demonstrated .
    OUTPUT:
    
Focal linear atelectasis within the right middle lobe . No areas of consolidation to suggest an acute pneumonia .