Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is persistent left base scarring / atelectasis . Right mid lung atelectasis / scarring is also seen . There is minimal pulmonary vascular congestion . No pleural effusion is seen . The cardiac and mediastinal silhouettes are stable . Spinal hardware is again partially imaged .
    OUTPUT:
    
1 . No significant interval change .