Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are overinflated with biapical hyperlucency , widening of the anteroposterior diameter , and increased retrosternal clear space , compatible with chronic obstructive airways disease . There is no focal consolidation . Heart size is normal . There are no pleural effusions , pneumothorax , or pneumomediastinum . Bones are diffusely demineralized , with thoracic hyperkyphosis and multilevel bridging ossification , which could be consistent with ankylosing spondylitis in the correct clinical setting . Again seen is a subacute , comminuted and impacted fracture of the right proximal humeral diaphysis , with 2 mm overriding and one - half shaft width medial displacement of the distal fracture fragment .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Emphysema . 3 . Subacute proximal right humeral fracture .