Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is subdiaphragmatic free air . The heart size is normal . The hilar and mediastinal contours are normal . The lungs are clear without evidence of focal consolidations concerning for pneumonia . There is no pleural effusion or pneumothorax . The visualized osseous structures are unremarkable .
    OUTPUT:
    
New large amount of subdiaphragmatic free air . Critical findings were discussed with Dr . ___ ___ the department of surgery by Dr . ___ in person at 2 :___ a .m . immediately after discovery .