Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is background COPD and hyperinflation . Multiple left - sided rib fractures are again noted . The previously seen pigtail catheter has been removed . Probable small pneumothorax seen anteriorly on the lateral view . A very small left effusion is again noted . The small right pleural effusion persists . No definite right - sided pneumothorax detected , though the lucency at the right lung base remains visible . A thin curvilinear density at the right lung apex is noted , but does not clearly represent a pneumothorax . Cardiomediastinal silhouette is unchanged . Again seen is upper zone redistribution , without overt CHF . Minimal subsegmental atelectasis and / or scarring at both bases again noted . Nodular density at the right mid / lower zone laterally is again noted .
    OUTPUT:
    
Interval removal of left pigtail catheter . Small residual pneumothorax , with small fluid levels , is noted . No definite right - sided pneumothorax . Please see comment above . Attention to this area on followup films is requested . Upper zone redistribution , without overt CHF , unchanged . Small right greater left effusions again noted , without significant change Right lower lung nodule again noted . Please see separate report of ___ CT scan , recommending repeat chest CT in ___ months to evaluate this nodule .