Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate to large left hydropneumothorax appears relatively unchanged compared to the previous exam . There is no contralateral shift of mediastinal structures . Subcutaneous emphysema within the left lateral chest wall and abdominal wall is unchanged . Numerous left - sided rib fractures are again demonstrated as well as orthopedic hardware within the left clavicle and cervical spine . Right lung remains clear .
    OUTPUT:
    
No significant interval change compared to the prior study with a moderate to large left hydropneumothorax and subcutaneous emphysema within the left chest and abdominal wall .