Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable chest radiograph was provided . Again seen is a large right lower lobe opacity , representing known mass . Superinfection can not be excluded . A small small - to - moderate right pleural effusion is seen and appears increased since the prior exam . Hyperlucency of the upper lung zones and hyperinflation is consistent with known emphysema . There is no pneumothorax . No left pleural effusion is identified . The cardiomediastinal silhouette is normal . A VP shunt catheter courses along the right hemithorax and is incompletely imaged .
    OUTPUT:
    
1 . Large opacity within the right lower lobe representing known mass . Superinfection can not be excluded with subtle suggestio of associated air bronchograms . 2 . Increasing right pleural effusion .