Complete response to steroids in dural inflammatory pseudotumor associated with Still's disease.

We report a unique case of a dural-based inflammatory pseudotumor (IPT) arising in the left cavernous sinus of a patient with a history of juvenile Still's disease. The patient presented with hemi-facial paresthesias, dull, constant headaches, and transient episodes of sharp pain along the temporalis region. Treatment with oral steroid therapy resulted in complete regression of the lesion and accompanied neuralgia symptoms. Because intracranial IPT can mimic meningiomas both clinically and radiographically and can be associated with systemic arthritic diseases, neurosurgeons should be familiar with this entity in order to avoid unnecessary radical surgery and alternatively consider a tapering course of steroid therapy.