Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Hyperexpansion of the lungs is again noted , compatible with known severe underlying COPD . The hilar and pleural surfaces are unremarkable , and the heart size is normal . There is no pneumothorax , focal airspace opacity , or pulmonary edema . Dense atherosclerotic calcifications in the aortic arch are again noted . Slight eventration of the right hemidiaphragm is unchanged . Osseous fusion of lower thoracic vertebral bodies and right eighth rib deformity related to prior surgery is unchanged .
    OUTPUT:
    
No acute cardiopulmonary process . Severe COPD and postsurgical changes are stable .