Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left small pneumothorax is unchanged . There is left lung volume loss and elevation of left hemidiaphragm , similar to prior . There is small left pleural effusion / hemothorax , similar to prior . Multiple left posterior rib fractures are again noted .
    OUTPUT:
    
No notable interval change since ___ . Stable small left hemopneumothorax and left lung volume loss .