Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval placement of a right basal a pigtail catheter . The size of the right pleural effusion has decreased . A small right apical pneumothorax is unchanged . There are however persisting opacities in the right lower lung zone . A small amount of atelectasis and volume loss is also present in the left lower lobe . The appearance of the cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
Interval placement of a right pleural pigtail catheter without significant change in the size of the right apical pneumothorax . Persisting opacity in the right lower lobe .