Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Right medial lung base opacity is not appreciably changed since ___ , and remains compatible with right middle lobe atelectasis . The heart size and cardiomediastinal contours are normal . No new focal consolidation , pleural effusion , or pneumothorax . No radiopaque foreign body .
    OUTPUT:
    
No new consolidation . Persistent right middle lobe atelectasis . As previously recommended , given persistent volume loss , chest CT is suggested for further evaluation .