Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Overlying trauma board slightly limits evaluation . Low lung volumes are present . Heart size is top normal . There is crowding of the bronchovascular structures . Lungs are grossly clear without focal consolidation . No pleural effusion or pneumothorax is detected . There are no acute osseous abnormalities identified .
    OUTPUT:
    
No acute cardiopulmonary abnormality .