Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Small right - sided pneumothorax is seen with post - biopsy changes again noted in the right mid lung . Multiple old left rib fractures are seen . The patient 's other known pulmonary nodules are better assessed on CT . A small right pleural effusion is redemonstrated with elevated right hemidiaphragm . Heart size and cardiomediastinal silhouette are unchanged .
    OUTPUT:
    
Small right pneumothorax . These findings were discussed with Dr . ___ by Dr . ___ at ___ on ___ .