Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to ___ , the lung volumes remain low . Known displaced right rib fractures . Unchanged position of the right pigtail catheter . Unchanged extent of a small right hemopneumothorax . The cardiac silhouette and the left lung , including the small retrocardiac atelectasis and small pleural effusion , remain unchanged .
    OUTPUT:
    
Stable right - sided small hemopneumothorax .