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IgG4-related pachymeningitis

Disease definition

A rare, brain inflammatory disease characterized by thickening of the dura mater of the cranium or spine with at least two histiopatholgical features of IgG4-related disease: dense lymphoplasmacytic infiltrate, storiform fibrosis, and/or obliterative phlebitis. Patients typically have non-specific CSF findings, and might be without systemic involvement or serum IgG4 elevation. Clinical manifestation are caused by mechanical compression of nerve or vascular structure, leading to functional deficit, most commonly headache, cranial nerve palsies, vision problems and motor weakness.


Classification level: Subtype of disorder
  • Synonym(s):
    • Idiopathic hypertrophic pachymeningitis
  • Prevalence: Unknown
  • Inheritance: Not applicable 
  • Age of onset: Adult, Elderly
  • ICD-10: G03.9
  • ICD-11: 4A43.0
  • OMIM: -
  • UMLS: -
  • MeSH: -
  • GARD: -
  • MedDRA: -

Detailed information

General public

Disease review articles

ERN : produced/endorsed by ERN(s)
FSMR : produced/endorsed by FSMR(s)
The documents contained in this web site are presented for information purposes only. The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment.