Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are low in volume and show a right middle lobe opacity . The cardiac silhouette appears mildly enlarged , likely accentuated due to low lung volumes . The mediastinal silhouette and hilar contours are normal . No pleural effusion or pneumothorax is present . An anterior cervical fusion device is noted to the cervical spine , unchanged .
    OUTPUT:
    
New right middle lobe opacity could be related to atelectasis in the setting of lower low lung volumes or pneumonia . A repeat radiograph with a better inspiratory effort could be obtained if clinically necessary .