Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no interval change to right upper lobe pneumothorax . The small right pleural effusion is better assessed on the previous study but appears unchanged . Post - biopsy changes are seen in the right mid lung . Cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
Unchanged small right pneumothorax and small right effusion .