Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are unremarkable . Lung volumes are low , but the lungs are clear . There is no pulmonary vascular engorgement . No pleural effusion or pneumothorax is present . Bilateral ___ rods with fixation wires spanning the thoracolumbar spine are incompletely imaged .
    OUTPUT:
    
No acute cardiopulmonary abnormality .