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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
PubMed

Insights

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.

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