Neuropsychiatric illness in systemic lupus erythematosus: insights from a patient with erotomania and Geschwind's Syndrome.

Individuals suffering from systemic lupus erythematosus (SLE) can develop a number of psychiatric conditions, including psychosis. It is often unclear in SLE patients with psychiatric illness whether their illness is primary, due to SLE brain disease, and/or due to treatments for SLE. This article describes a patient with SLE who developed erotomania and personality changes. The differential diagnosis and possible pathogenesis of psychiatric illnesses occurring in SLE patients are discussed.