title: CD4 mononuclear cell infiltrates and Fas/Fas ligand positive mammary gland cells in breast tissue from a patient with Sjögren's syndrome.
abstract: We describe a 49-year-old patient with lip biopsy proven Sjögren's syndrome (SS) and keratoconjunctivitis sicca, who had dental caries, xerostomia, recurrent upper respiratory tract infections, arthritis in her hands, elbows and knees, and recurrent parotid inflammation. She developed bilateral breast nodules in 1988. Right breast nodules were excised in 1993 and 1995, but reappeared in 1996, requiring 2 more excisions. Breast tissue samples showed remarkable intralobular and perilobular mononuclear cell infiltrates that were predominantly CD4+ T cells and expressed bcl-2. A few cells stained CD20+ and CD8+. SS breast glandular epithelial cells stained more intensely for Fas compared to normal cells. CD4+ T cells and Fas mediated cell death may be involved in the mammary gland lesions in SS.
authors.affiliation: Hospital De Clinicas Caracas, Venezuela.
authors.forename: M R
authors.initials: MR
authors.lastname: Attias
authors.forename: L
authors.initials: L
authors.lastname: Kong
authors.forename: M
authors.initials: M
authors.lastname: Tortolero
authors.forename: B G
authors.initials: BG
authors.lastname: Maccarone
authors.forename: T
authors.initials: T
authors.lastname: Nakabayashi
authors.forename: N
authors.initials: N
authors.lastname: Talal
authors.forename: H
authors.initials: H
authors.lastname: Dang
mesh_terms: D001940:Breast / Q000378:metabolism / Q000473:pathology; D001941:Breast Diseases / Q000378:metabolism / Q000473:pathology*; D015496:CD4-Positive T-Lymphocytes / Q000378:metabolism / Q000473:pathology*; D004848:Epithelium / Q000378:metabolism / Q000473:pathology; D053222:Fas Ligand Protein; D005260:Female; D006801:Humans; D007124:Immunoenzyme Techniques; D007638:Keratoconjunctivitis Sicca / Q000473:pathology; D008562:Membrane Glycoproteins / Q000378:metabolism*; D008875:Middle Aged; D019253:Proto-Oncogene Proteins c-bcl-2 / Q000378:metabolism; D012859:Sjogren's Syndrome / Q000378:metabolism / Q000473:pathology*; D014987:Xerostomia / Q000473:pathology; D019014:fas Receptor / Q000378:metabolism*
chemical_list: C505661:FASLG protein, human; D053222:Fas Ligand Protein; D008562:Membrane Glycoproteins; D019253:Proto-Oncogene Proteins c-bcl-2; D019014:fas Receptor