title: Immunohistochemical study of chronic nongranulomatous anterior uveitis in juvenile idiopathic arthritis.
abstract: OBJECTIVE
  To provide a detailed immunohistochemical analysis of juvenile idiopathic arthritis (JIA)-associated anterior uveitis.
  
  
  METHODS
  Interventional case report.
  
  
  METHODS
  One patient.
  
  
  METHODS
  A 12-year-old patient had recurrent pauciarticular JIA and smoldering anterior uveitis in the right eye. Despite treatment with local and systemic corticosteroids and an anti-tumor necrosis factor agent, the right eye became hypotonous and painful and eventually was enucleated. The clinical history and histopathologic and immunohistochemical analyses of the enucleated globe were reviewed.
  
  
  METHODS
  Histopathologic and immunohistochemical features of JIA-associated anterior uveitis.
  
  
  RESULTS
  The iris and ciliary body showed nongranulomatous chronic inflammation predominantly made up of plasma cells, Russell bodies, and plasmacytoid lymphocytes. The ciliary processes and pars plana ciliaris showed focal aggregates of CD20-positive cells with several CD3- and CD8-positive cells and occasional CD4- and CD68-positive cells. Pancytokeratin stain showed ciliary epithelial proliferation admixed with lymphocytes. The iris revealed kappa-positive cells within the stroma and lambda-positive cells on the surface. The iris infiltrate primarily was made up of immunoglobulin (Ig) G-positive cells with occasional IgA- and IgM-positive cells. The anterior chamber exudate was mainly positive for IgG and IgA.
  
  
  CONCLUSIONS
  The immunohistochemical findings suggest that JIA-associated nongranulomatous iridocyclitis is a primarily B-cell-infiltrative process.
authors.affiliation: Department of Ophthalmology, Keck School of Medicine of the University of Southern California, A Ray Irvine Ocular Pathology Laboratory, the Doheny Eye Institute, Los Angeles, California 90033, USA.
authors.forename: Jignesh G
authors.initials: JG
authors.lastname: Parikh
authors.forename: Khaled A
authors.initials: KA
authors.lastname: Tawansy
authors.forename: Narsing A
authors.initials: NA
authors.lastname: Rao
mesh_terms: D015703:Antigens, CD / Q000032:analysis; D001171:Arthritis, Juvenile / Q000150:complications*; D002648:Child; D002908:Chronic Disease; D002924:Ciliary Body / Q000276:immunology; D015353:Eye Enucleation; D006801:Humans; D007070:Immunoglobulin A / Q000276:immunology; D007074:Immunoglobulin G / Q000276:immunology; D015863:Iridocyclitis / Q000209:etiology* / Q000276:immunology*; D007498:Iris / Q000276:immunology; D008297:Male; D010950:Plasma Cells / Q000276:immunology; D012008:Recurrence
chemical_list: D015703:Antigens, CD; D007070:Immunoglobulin A; D007074:Immunoglobulin G