Allergic fungal sinusitis complicated by fungal brain mass.

A 36-year-old African American female with a 14-year history of allergic fungal sinusitis (AFS) presented with progressive worsening headache, fevers, proptosis, and a large frontal lobe brain mass. After excisional biopsy, the non-invasive, dematiaceous mold, Bipolaris australiensis, was identified. We review the epidemiology, etiology, pathophysiology, and clinical presentations of fungal sinusitis, as well as the complex management and multifaceted therapeutic modalities of AFS.