Nonvasculitic autoimmune inflammatory meningoencephalitis

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Caselli and colleagues described five cases with encephalopathy, progressive cognitive decline, ataxia, abnormal CSF studies and steroid responsiveness, and proposed the term non-vasculitic autoimmune inflammatory meningoencephalitis (NAIM). Many of these cases had brain biopsy showing mild leptomeningeal perivascular lymphocytic inflammation, however, none of the cases had a post-mortem. Nonvasculitic autoimmune mediated meningoencephalitis has been described in patients with Sjogren's syndrome, systemic lupus erythematosus and, more recently, with Hashimoto's disease. The present study is the first post-mortem report of a case with a clinical diagnosis of NAIM. Neuropathological examination revealed a panencephalitis with intact vessel walls. T and B immunostaining showed a mixture of T and B cells. The findings were not consistent with other reported findings in collagen vascular diseases including Sjogren's syndrome, CNS vasculitis or Hashimoto's encephalopathy. There was no evidence of neoplasia, bacteria, acid-fast bacilli, fungi or atypical infectious agents. This is the first post-mortem report of a case with a clinical diagnosis of NAIM and demonstrates a panencephalitis without evidence of a vasculitis. The pathology seems unique, however, Sjogren and Hashimoto's encephalopathy might be variants of NAIM.

Original languageEnglish (US)
Pages (from-to)149-152
Number of pages4
JournalNeuropathology
Volume24
Issue number2
DOIs
StatePublished - Jun 2004

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Meningoencephalitis
Sjogren's Syndrome
Central Nervous System Vasculitis
Collagen Diseases
Hashimoto Disease
Brain Diseases
Ataxia
Vasculitis
Vascular Diseases
Systemic Lupus Erythematosus
Bacillus
B-Lymphocytes
Fungi
Steroids
Pathology
Inflammation
Bacteria
T-Lymphocytes
Biopsy
Acids

Keywords

  • Autoimmune
  • Panencephalitis
  • Steroid responsive

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Neuroscience(all)

Cite this

Nonvasculitic autoimmune inflammatory meningoencephalitis. / Josephs, Keith Anthony; Rubino, Frank A.; Dickson, Dennis W.

In: Neuropathology, Vol. 24, No. 2, 06.2004, p. 149-152.

Research output: Contribution to journalArticle

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