Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is small right pneumothorax adjacent to the right lung base . There is possible slight mass - effect at the right cardiophrenic angle . Right internal jugular line terminates at mid SVC . Previously seen multi focal opacities have improved . There is mild interstitial lung disease . Cardiomediastinal silhouette appears normal size .
    OUTPUT:
    
Small right pneumothorax .