Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the immediate prior study of earlier the same day , there is a new right - sided pigtail drainage catheter . There is no pneumothorax . The right pleural effusion has significantly decreased , with only a trace pleural effusion remaining , though there may be a residual subpulmonic effusion . Fluid no longer extends into the minor fissure . There is no left - sided pleural effusion . There is no focal consolidation or pulmonary edema . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
New right - sided pigtail drainage catheter with only trace right pleural effusion remaining , though residual subpulmonic effusion can not be excluded .