Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral radiographs of the chest demonstrate a gastrostomy tube in the left upper quadrant . The lungs are clear without focal consolidation , pleural effusion , or pneumothorax . The cardiac silhouette is normal in size . The mediastinal and hilar contours are within normal limits . There is no pulmonary vascular engorgement . No free air is detected beneath the diaphragm .
    OUTPUT:
    
No evidence of free intraperitoneal air .