Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Previously seen left rib fractures are again noted , and the cardiac and mediastinal contours are normal . No consolidation , pleural effusion or pulmonary edema is seen . Small apical pneumothorax is seen on the left , and known right apical pneumothorax is not well visualized .
    OUTPUT:
    
Unchanged left rib fractures ( ___ ) are again seen , and left apical pneumothorax is seen . Right known pneumothorax is not well visualized on this radiograph .