Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Although a right pleural pigtail drainage catheter has not changed position , since ___ a moderate volume of pleural fluid has reaccumulated , extending up the lateral costal surface and into the fissure . There is no pneumothorax . The consolidation in the right lower lobe is probably atelectasis given the history of longstanding effusion . The cardiomediastinal silhouette is mildly enlarged , but stable .
    OUTPUT:
    
1 . Moderate right pleural effusion reaccumulated over one day . 2 . Recurrent right lower lobe atelectasis , less likely pneumonia .