Pseudotumoral allergic fungal sinusitis with skull base involvement.

Here we report a case of pseudotumoral recurrence of allergic fungal sinusitis with involvement of the skull base that was successfully treated with systemic corticosteroids and itraconazole without surgery. This report discusses the sometimes misleading radiological and clinical features as well as the diagnostic and therapeutic challenges of a condition that should be recognized by ENT specialists, neurosurgeons, ophtalmologists and radiologists.