Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are moderately well - expanded and clear . No pleural effusion or pneumothorax . Heart size , mediastinal contour , and hila are unremarkable . Limited assessment of the osseous structures are notable for stable mild compression deformity of a mid thoracic vertebral body . No retropulsion .
    OUTPUT:
    
1 . No acute cardiopulmonary process . No definite pneumomediastinum or pneumonia . 2 . Stable mild compression deformity of a mid thoracic vertebral body .