What's your diagnosis?

The 75y/o man has suffered from whole abdominal pain with diarrhea and vomiting for 3 days.
Chest x-ray



左邊的金屬是打仗留下的子彈。

下面是解答：









































CT showed PPU



KUB可以看到似乎是leaping dolphin sign!!和一塊似乎是liver下的free air.