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Nonparaneoplastic limbic encephalitis with relapsing polychondritis
Yasuyuki Ohta1, Isao Nagano, Daigo Niiya
1Department of Neurology, Graduate School of Medicine and Dentistry, Okayama University, 2-5-1 Shikata-cho, Okayama 700-8558, Japan. yasuyuki@cc.okayama-u.ac.jp
Journal of the Neurological Sciences
|May 14, 2004
Summary
Relapsing polychondritis (RP) can affect the brain, causing memory loss and mental health issues. This case highlights RP-associated limbic encephalitis, successfully treated with steroids.
Area of Science:
- Neurology
- Immunology
- Rheumatology
Background:
- Relapsing polychondritis (RP) is a rare autoimmune disease characterized by inflammation and destruction of cartilaginous tissues.
- While RP commonly affects cartilage in the ears, nose, and joints, its neurological manifestations are less understood.
Observation:
- A patient with RP affecting skull cartilage developed multifocal meningoencephalitis.
- The patient presented with severe recent memory disturbance, anxiety, and moderate depression.
Findings:
- MRI revealed bilateral median temporal lobe lesions, including the hippocampi and amygdaloidal bodies.
- These lesions resolved following high-dose steroid treatment, suggesting a link between RP and limbic encephalitis.
Implications:
- This case represents the first documented instance of RP presenting with amnesic syndrome and mental disorder due to nonparaneoplastic limbic encephalitis.
- The findings underscore the importance of considering autoimmune encephalitis in patients with RP and neurological symptoms.
- Early diagnosis and prompt immunosuppressive therapy may be crucial for managing RP-related central nervous system involvement.