Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left apical pulmonary contusion is better demonstrated the subsequent chest CT . No other areas of parenchymal consolidation . No evidence of pneumothorax or pleural effusions . Heart size is within normal limits . Known left first through third rib fractures are better assessed on the subsequent chest CT . Pneumomediastinum and extensive subcutaneous emphysema is seen bilaterally .
    OUTPUT:
    
1 . Left apical contusion is better demonstrated on the subsequent CT . No evidence of pneumothorax . 2 . Known rib fractures involving the left ___ - 3rd ribs . 3 . Pneumomediastinum and subcutaneous emphysema .