Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest are compared to previous exam from ___ . The lungs are hyperinflated . Linear opacity in the left lung base is suggestive of scarring . There is no evidence of consolidation or effusion . Cardiac silhouette is enlarged , but stable . Median sternotomy wires are again noted . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Hyperinflation without evidence of acute cardiopulmonary process . No evidence of pulmonary vascular congestion .