Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are relatively low lung volumes and minor left basilar atelectasis / scarring . Likely external artifact projects over the lateral right upper hemi thorax . No definite focal consolidation is seen . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Minor left base atelectasis without definite focal consolidation . Stable mediastinal and hilar contours .