We report a 9-year-old girl who developed a malignant peripheral nerve sheath tumour (MPNST) with an arteriovenous fistula
arising from the left femoral nerve and adjacent to the iliofemoral vessels in the ipsilateral groin, but without infiltrating
them. We describe the MRI and MRA findings. Although MPNST is relatively well known and widely studied, the location of this
mass is unique in a child. The mass was surgically removed.
Keywords Malignant peripheral nerve tumour - Inguinal - MRI - Child