Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Lung volumes are low . Bibasilar patchy and linear opacities are similar to the prior and likely represent atelectasis or scarring . There is a subtle opacity adjacent to the minor fissure , not seen on the prior exam , which could represent atelectasis , aspiration or pneumonia . No pleural effusion or pneumothorax is seen . There is fusion hardware projected over the cervical spine .
    OUTPUT:
    
1 . Subtle , new focal opacity adjacent to the right minor fissure , which could represent atelectasis , aspiration or early pneumonia . 2 . Bibasilar patchy and linear opacities are consistent with atelectasis or scarring .