Cottom, H, Mighell, AJ, High, A et al. (1 more author) (2015) Are plasma cell-rich inflammatory conditions of the oral mucosa manifestations of IgG4-related disease? Journal of Clinical Pathology, 68 (10). pp. 802-807. ISSN 0021-9746
Abstract
Aim: The aim of this study was to characterise plasma cell infiltrates, in terms of IgG4 positivity, in specific and non-specific plasma cell-rich chronic inflammatory conditions of the oral mucosa. Exploring the possibility that specific plasma cell-rich oral inflammatory conditions have association with or represent an oral manifestation of immunoglobulin G4-related disease (IgG4-RD). Methods: Ten patients with plasma cell-rich chronic inflammatory conditions of the oral mucosa were identified (seven-plasma cell mucositis and three-non-specific diffuse oral mucosal inflammation with ulceration). For each patient, the clinical record and H&E-stained sections were reviewed. Immunohistochemistry for IgG and IgG4 antibodies was performed on sections from the corresponding paraffin block, permitting calculation of the mean number of IgG4+ plasma cells per high-power field (HPF) and the IgG4+/IgG+ plasma cell ratio. Results: In all the cases, only one histological hallmark of IgG4-RD-a dense lymphoplasmacytic infiltrate-was seen. Review of the medical histories did not reveal any features representing other manifestations of IgG4-RD. The number of IgG4+ plasma cells exceeded 100 per HPF in half of the cases. Only two cases had an IgG4+/IgG+ plasma cell ratio of >40%; both of which were in the non-specific oral inflammatory group. Conclusions: Our study suggests that plasma cell mucositis does not meet microscopic criteria for IgG4-RD. It importantly reinforces the opinion that IgG4+ plasma cells are major components of chronic inflammation in the oral cavity and the pertinence of correct contextual interpretation of histopathological features with clinical findings.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Medicine and Health (Leeds) > School of Dentistry (Leeds) > Oral Surgery (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 06 Sep 2016 14:52 |
Last Modified: | 08 Nov 2016 18:05 |
Published Version: | http://dx.doi.org/10.1136/jclinpath-2014-202814 |
Status: | Published |
Publisher: | BMJ Publishing Group |
Identification Number: | 10.1136/jclinpath-2014-202814 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:89342 |