Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is interval increase in the air component of the known right hydropneumothorax . The fluid component is likely stable . The right pigtail catheter appears to be slightly moved in position . Otherwise , the rest of the exam is stable since earlier same day radiograph .
    OUTPUT:
    
1 . Interval increase in the air component of the known right hydropneumothorax . The fluid component appears stable .