Xanthogranuloma of the anterior skull base: A case report

A case of a xanthogranuloma arising in the anterior skull base involving th e bone of the left orbital roof, the dura mater, and the periorbit is prese nted. The lesion was completely removed by a supraorbital "eyebrow" skin in cision using frameless stereotactic image guidance. A reconstruction of the orbital roof was performed using a titanium mesh graft. The neuropathologi cal investigation revealed all the characteristics of a xanthogranuloma. In tracranially, xanthogranulomas appear as rare tumors of the dura or choroid plexus, usually arising in association with histocytosis X or familial hyp erlipoproteinemia. One case not associated with these diseases is discussed .