Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided pneumothorax has improved , now measuring 10 mm versus 18 mm yesterday . Air-fluid level has also decreased . There is no new consolidation and no pulmonary edema . Mediastinal and cardiac contour is unchanged . Right - sided Port - A - Cath ends in cavoatrial junction .
    OUTPUT:
    
Small right - sided pneumothorax has improved .