title: Coexistance of Amyloidosis and Primary Sjögren's Syndrome: An Overview.
abstract: BACKGROUND
  The association of primary Sjogren´s Syndrome (SS) and amyloidosis has been recognized but scarcely assessed.
  
  
  OBJECTIVE
  Herein we analyzed the literature regarding this association in order to describe a SS phenotype prone to both conditions.
  
  
  METHODS
  PubMed and CINAHL databases were searched from inception until April 2016 for the keywords: Amyloidosis, amyloid, Sjögren's syndrome and their combinations.
  
  
  RESULTS
  Most of the cases corresponded to localized amyloidosis mainly at skin and lung, whereas only three cases were systemic. Other places of localized amyloidosis were the kidney, tracheobronchial, tongue, breast, salivary gland and vocal cord. Most of the localized forms corresponded to AL type, whereas AA amyloidosis was uncommon. The diagnosis of amyloidosis followed the SS onset (1-25 years) and in the majority of patients the presence of B cell hyperactivity traduced by hypergammaglobulinemia, positive rheumatoid factor and/or anti-Ro/SSA and anti-La/SSB antibodies were observed. In seven patients, an associated lymphoma was also documented.
  
  
  CONCLUSIONS
  The spectrum of lymphoid proliferation associated with SS extends beyond the classical B cell lymphoma. Localized or systemic amyloidosis might coexist with primary SS. Localized amyloidosis should be suspected in patients with consistently high serologic activity and suggestive lesions.
authors.affiliation: Department of Immunology and Rheumatology. Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Vasco de Quiroga 15, Col. Belisario Dominguez Seccion XVI, CP 14080, Mexico City, Mexico.
authors.forename: Gabriela
authors.initials: G
authors.lastname: Hernandez-Molina
authors.affiliation: Department of Immunology and Rheumatology. Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Vasco de Quiroga 15, Col. Belisario Dominguez Seccion XVI, CP 14080, Mexico City, Mexico.
authors.forename: David
authors.initials: D
authors.lastname: Faz-Munoz
authors.affiliation: Department of Immunology and Rheumatology. Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Vasco de Quiroga 15, Col. Belisario Dominguez Seccion XVI, CP 14080, Mexico City, Mexico.
authors.forename: Miguel
authors.initials: M
authors.lastname: Astudillo-Angel
authors.affiliation: Department of Immunology and Rheumatology. Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Vasco de Quiroga 15, Col. Belisario Dominguez Seccion XVI, CP 14080, Mexico City, Mexico.
authors.forename: Alejandra
authors.initials: A
authors.lastname: Iturralde-Chavez
authors.affiliation: Deparment of Pathology, Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran. Vasco de Quiroga 15, Col. Belisario Dominguez Seccion XVI, CP 14080, Mexico City, Mexico.
authors.forename: Edgardo
authors.initials: E
authors.lastname: Reyes
mesh_terms: D000328:Adult; D000368:Aged; D000686:Amyloidosis / Q000097:blood / Q000150:complications* / Q000175:diagnosis / Q000276:immunology; D015551:Autoimmunity; D015415:Biomarkers / Q000097:blood; D049109:Cell Proliferation; D006801:Humans; D008168:Lung / Q000276:immunology / Q000473:pathology; D008214:Lymphocytes / Q000276:immunology / Q000473:pathology; D008875:Middle Aged; D010641:Phenotype; D012859:Sjogren's Syndrome / Q000097:blood / Q000150:complications* / Q000175:diagnosis / Q000276:immunology; D012867:Skin / Q000276:immunology / Q000473:pathology
chemical_list: D015415:Biomarkers
keywords: Amyloidosis; Sjögren’s syndrome; amyloid; keratoconjunctivitis sicca; lymphoid proliferation; rheumatoid factor.