Sarcoid polyneuropathy responsive to intravenous immunoglobulin.

We describe a 38-year-old woman with a predominantly sensory axonal polyneuropathy in whom a nerve biopsy demonstrated sarcoid granulomas. The neuropathy did not respond to oral steroid therapy but there was a rapid and repeated response to intravenous immunoglobulin, which gradually diminished over subsequent treatments, but remained beneficial. The systemic sarcoidosis remained active.