Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: When compared to the chest radiograph from 1 day prior to the left pneumothorax has increased in size , particularly the basilar component . No definite signs of tension . Innumerable pulmonary nodules are again seen likely metastatic . Heart size is top - normal with prior CABG and median sternotomy . Left - sided pacer with the leads in the RA and RV .
    OUTPUT:
    
Increasing left moderate pneumothorax .