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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.
ORPHA:449427
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: -
A summary on this disease is available in Deutsch (2019) Español (2019) Français (2019) Italiano (2019) Nederlands (2019)
Detailed information
General public
- Article for general public
- Français (2014) - SNFMI
- Svenska (2016) - Socialstyrelsen
Disease review articles
- Review article
- English (2014) - Orphanet J Rare Dis
- Diagnostic criteria
- English (2014, pdf) - Orphanet


Additional information
Further information on this disease
Patient-centred resources for this disease
Research activities on this disease
Specialised Social Services
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