Orbital Pseudotumor: Uncommon Initial Presentation of IgG4-Related Disease

IgG4-related disease (IgG4-RD) encompasses a group of fibroinflammatory conditions recognized in recent times. The main clinical features include variable degrees of tissue fibrosis, tumorlike expansions, perivascular lymphocytic infiltration rich in IgG4-positive plasma cells, and elevated serum Ig...

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Bibliographic Details
Main Authors: Teresa Carbone, Ricardo Azêdo Montes, Beatriz Andrade, Pedro Lanzieri, Luis Mocarzel
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:Case Reports in Rheumatology
Online Access:http://dx.doi.org/10.1155/2015/324365
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Summary:IgG4-related disease (IgG4-RD) encompasses a group of fibroinflammatory conditions recognized in recent times. The main clinical features include variable degrees of tissue fibrosis, tumorlike expansions, perivascular lymphocytic infiltration rich in IgG4-positive plasma cells, and elevated serum IgG4. A case has been reported of an elderly patient with an unexplained unilateral exophthalmia; biopsy was performed and revealed lymphocytic infiltration, suggesting IgG4-RD. High serum levels of IgG4, in association with a good response to steroid therapy and to the exclusion of other diagnoses, confirmed the hypothesis of orbital pseudotumor by IgG4-RD.
ISSN:2090-6889
2090-6897