Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Linear areas of atelectasis or scarring involving the bilateral mid to lower lungs are unchanged since ___ . No new focal consolidation , pleural effusion , or pneumothorax . The cardiomediastinal silhouette is unchanged . Median sternotomy wires are intact .
    OUTPUT:
    
No acute intrathoracic process .