Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no focal consolidation , pleural effusion or pneumothorax . Streaky opacities at the left lung base is most likely due to atelectasis . Cardiomediastinal silhouette is within normal limits . Median sternotomy wires are intact . Known compression deformities of L1 and L2 are partially imaged .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Known L1 and L2 compression deformities .