Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided demonstrate no focal consolidation effusion or pneumothorax . There is mild linear density at the left lung base which when compared with a prior CT of the chest dated ___ likely reflects scarring in this region . Suture material in the left upper lung noted . No large effusion or pneumothorax . Cardiomediastinal silhouette is normal . No free air below the right hemidiaphragm .
    OUTPUT:
    
No acute findings .