Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As before , the mediastinal structures are shifted to the right which is a chronic finding . The cardiomediastinal silhouette is unchanged . Prominence of the hila bilaterally is similar . No focal consolidation or pneumothorax is identified . Blunting of the right costophrenic angle is unchanged and no pleural effusion is otherwise identified . Linear atelectasis is seen within the left lung base . Multiple clips are again seen in the left upper quadrant of the abdomen . There are no acute osseous abnormalities demonstrated .
    OUTPUT:
    
No interval change from prior with no evidence of pneumonia .