Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No evidence of median sternotomy wire fracture . Multiple mediastinal clips as well as vascular stents are re- demonstrated . Mild to moderate cardiomegaly is unchanged dating back to ___ . There is no pneumothorax or pleural effusion . Lung volumes are low without focal consolidation . Thoracic spine degenerative changes are present with anterior bridging osteophytes .
    OUTPUT:
    
Low lung volumes without focal consolidation .