Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . The lungs are clear of focal consolidation , effusion , or pulmonary vascular congestion . The cardiomediastinal silhouette is within normal limits . Hilar contours are within normal limits . Linear opacity in the right mid lung is most suggestive of atelectasis versus scarring .
    OUTPUT:
    
No radiographic evidence of active tuberculosis .