An 11-year-old girl was admitted to the emergency department (ED) having fallen through a glass door with a wound to her left buttock. She was haemodynamically normal, with no clinical evidence of distal neurovascular deficit. Wound exploration under local anaesthesia revealed no significant bleeding or obvious foreign body. The wound was cleaned and sutured. At 3 months post-injury, her general practitioner referred her for abdominal ultrasound as a result of recurrent infection, persistent …