Young girl. Sudden onset left pelvic pain following trampoline accident. Spot diagnosis?
Avulsion fracture of the left anterior superior iliac spine.
There is a curvilinear density projected just lateral to the left iliac spines. The anterior superior iliac spine (ASIS) on the left has ill defined outline when compared to the contralateral side. The appearance is consistent with an avulsion fracture of the left ASIS.