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Sarcoid polyneuropathy responsive to intravenous immunoglobulin
Dominic Heaney1, Jennian F Geddes, Kulan Nagendren
1Department of Neurology, Royal London Hospital, Whitechapel, London E1 1BB, UK.
Muscle & Nerve
|February 26, 2004
Summary
This study details a sensory axonal polyneuropathy case linked to sarcoid granulomas. Intravenous immunoglobulin showed therapeutic benefit despite a lack of response to steroids.
Area of Science:
- Neurology
- Immunology
- Pathology
Background:
- Sarcoidosis is a multisystem inflammatory disease.
- Polyneuropathy can be a rare neurological manifestation of sarcoidosis.
- Sensory axonal polyneuropathy presents with nerve damage affecting sensory functions.
Observation:
- A 38-year-old woman presented with predominantly sensory axonal polyneuropathy.
- Nerve biopsy confirmed the presence of sarcoid granulomas.
- Systemic sarcoidosis was active in the patient.
Findings:
- The patient's neuropathy did not improve with oral steroid therapy.
- Intravenous immunoglobulin (IVIg) induced a rapid and repeatable positive response.
- The therapeutic effect of IVIg gradually diminished but remained beneficial over time.
Implications:
- This case highlights a potential treatment option for sarcoidosis-associated polyneuropathy.
- Intravenous immunoglobulin may be a viable therapeutic strategy when steroids are ineffective.
- Further research is warranted to understand the immunopathogenesis of sarcoidosis-related neuropathies.