Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Shiley catheter is seen unchanged in position and appropriately placed , terminating in the right atrium . Lungs are clear bilaterally with no pleural effusion , focal consolidation or evidence of pneumothorax . The cardiomediastinal silhouette is within normal limits . The pleural surfaces are unremarkable . There is a stable wedge compression seen in an upper lumbar vertebral body .
    OUTPUT:
    
No evidence of pleural effusion . Shiley catheter unchanged in position .