Femoral Nerve Paralysis Associated with Traumatic Iliacus Hematoma: A Case Report

We report a case of femoral nerve paralysis associated with a traumatic iliacus hematoma.

A 19-year-old female presented with left groin pain. She fell from a height of 3 m during cheerleading and experienced numbness in the left femoral nerve region along with quadriceps muscle weakness. Radiographs found no sign of fractures; however, magnetic resonance imaging revealed a left iliacus hematoma extending to the lacuna muculorum, adjacent to the femoral nerve. Based on these findings, the diagnosis of traumatic iliacus hematoma accompanied by femoral nerve paralysis was made. Since the hematoma was relatively small, she was conservatively treated. Her symptoms fully resolved by 60 days post-injury.

While femoral nerve paralysis associated with iliacus hematoma is rare and difficult to diagnose correctly, this condition should be included in the differential diagnosis when encountering a patient with groin pain after high-energy trauma.