Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate relative flattening of the bilateral hemidiaphragms and multiple bullae , consistent with severe emphysema . There is no evidence of pleural effusion , pulmonary edema , or pneumothorax . No focal consolidation is identified . The cardiomediastinal silhouette is stable and the aorta is somewhat tortuous . Left - sided rib deformities are again seen , consistent with healed fractures .
    OUTPUT:
    
1 . No evidence of pneumothorax or other acute cardiopulmonary process . 2 . Severe emphysema .