School ager who sat on a rebar construction rod

CT of pediatric vaginal trauma and extraperitoneal bladder rupture
Immediate contiguous (above) sagittal CT with contrast of the pelvis shows on the immediate image fluid and air anterior to the bladder (above left) and air anteriorly in the fluid-filled vagina and active bleeding in the rectum posteriorly (above right). The delayed image (below) shows extravasated intravenous contrast anterior to the contrast filled bladder.

The diagnosis was vaginal trauma in the form of laceration of the rectum and vagina and extraperitoneal bladder rupture.