Xanthogranuloma of the Anterior Skull Base: A Case Report

Abstract

ExaminationPhysical examination revealed a protrusion of the left bulbus and a reduction of vision down to 40% in the affected eye. Compted tomography (CT) and magnetic resonance omaging (MRI) scans of the head showed a 2 X 2 X 1 cm non-contrast-enhancing mass, enlarging the left supraorbital rim and compressing the orbital gyruses and the ocular globe (Fig. 1). The periorbital periosteum appeared to be intact, and the dura mater was not clearly identifiable. An infiltration of the brain was not seen, but the orbital roof and the zygomatic process of the frontal bone were destroyed, apparently due to prolonged pressure. The lateral wall of the frontal sinus was intact. A T2-weighted MRI demonstrated a high liquid content in this mass (Fig. IC, D