MRI and pathological findings of rheumatoid meningitis

Masaaki Matsushima1, Hiroaki Yaguchi, Masaaki Niino

  • 1Department of Neurology, Hokkaido University Graduate School of Medicine, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan.

Insights

Rheumatoid meningitis (RM), a severe rheumatoid arthritis complication, is difficult to diagnose. This case highlights biopsy confirmation of RM in an elderly woman with brain lesions.

Area of Science:

  • Neurology
  • Rheumatology
  • Pathology

Background:

  • Rheumatoid meningitis (RM) is a rare but severe neurological complication of rheumatoid arthritis.
  • Early diagnosis and treatment are crucial due to RM's high mortality rate.

Observation:

  • An 80-year-old woman presented with a brain lesion.
  • MRI revealed meningeal enhancement, suggesting central nervous system involvement.

Findings:

  • Biopsy analysis of the brain lesion confirmed microscopic findings of RM.
  • Pathological examination showed meningeal lymphocytic infiltration, vasculitis, and rheumatoid nodules.

Implications:

  • This case underscores the importance of considering RM in rheumatoid arthritis patients with neurological symptoms.
  • Biopsy confirmation is vital for accurate RM diagnosis and timely initiation of treatment.
  • Prompt treatment of RM can improve patient outcomes and reduce mortality.

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