Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear within normal limits . There is vague veil - like opacity projecting over the apical regions of each lung , but suspected to represent an artifact associated with soft tissue attenuation . The lungs themselves appear clear . There are no pleural effusions or pneumothorax . Mild leftward convex curvature is noted along the lower thoracic spine .
    OUTPUT:
    
No evidence of acute disease .