Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A streaky right mid lung opacity has increased , but suggests shifting morphology of pre-existing atelectasis or scarring . The lateral view shows that streaky opacities refer to the anterior chest , probably in the right middle lobe . The moderate relative elevation of the right hemidiaphragm appears unchanged . There is no pleural effusion or pneumothorax . A mild wedge compression deformity along a lower thoracic vertebral body appears unchanged .
    OUTPUT:
    
No evidence of acute disease .