title: [Reactive arthritis caused by Giardia lamblia in a patient with secretory IgA deficiency].
abstract: The authors report a case of seronegative polyarthritis resistant to the anti-inflammatory therapy in a 16-year-old male with intermittent diarrhea. A stool examination showed the presence of cysts of Giardia lamblia and an immunological study detected a partial serum IgA deficiency, including its secretory fraction. Based on clinical, analytical and radiological findings and the clinical improvement after treatment with metronidazole, a diagnosis of reactive arthritis associated to chronic giardiasis was made. Authors make a brief review of the literature the regarding this case.
authors.affiliation: Serviço de Medicina II, Hospital Central de Asturias (Centro Universitário) Oviedo, Espanha.
authors.forename: R C
authors.initials: RC
authors.lastname: Susano
authors.forename: J F
authors.initials: JF
authors.lastname: de Quirós
authors.forename: L
authors.initials: L
authors.lastname: Caminal
authors.forename: J
authors.initials: J
authors.lastname: Ferro
authors.forename: C
authors.initials: C
authors.lastname: Busono
authors.forename: C
authors.initials: C
authors.lastname: Gómez
mesh_terms: D000293:Adolescent; D016918:Arthritis, Reactive / Q000150:complications*; D005873:Giardiasis / Q000150:complications*; D006801:Humans; D017098:IgA Deficiency / Q000150:complications*; D007071:Immunoglobulin A, Secretory; D008297:Male
chemical_list: D007071:Immunoglobulin A, Secretory
vernacular_title: Artrite reactiva por Giardia lamblia num doente com défice de IgA secretora.