IgG4-related cerebral pseudotumor with perineural spreading along branches of the trigeminal nerves causing compressive optic neuropathy

Abstract

Herein, we report a rare case of IgG4-RD presenting as a parasellar tumor and present a review of the related literature. Based on the case report, we propose that aggressive therapy with glucocorticoid, rituximab, and cyclophosphamide may potentially be useful for treating such cases.