title: [Pyogenic sacroiliitis in a patient with HLA B27].
abstract: The authors report on a patient with bilateral sacroillitis and positive HLA B27 who developed a pyoarthritis in one of the sacro-iliac joints. They comment the diagnostics difficulties in this type of septic arthritis and the association of the histocompatibility antigen B27 with pyogenic sacroiliitis.
authors.forename: R M
authors.initials: RM
authors.lastname: Pereira
authors.forename: S S
authors.initials: SS
authors.lastname: Roinzenblatt
authors.forename: E C
authors.initials: EC
authors.lastname: de Mendonça Neto
authors.forename: M E
authors.initials: ME
authors.lastname: Thomazini
mesh_terms: D000328:Adult; D001170:Arthritis, Infectious / Q000175:diagnosis / Q000276:immunology*; D005260:Female; D015796:HLA-B27 Antigen / Q000032:analysis*; D006801:Humans; D011859:Radiography; D012446:Sacroiliac Joint / Q000000981:diagnostic imaging; D014463:Ultrasonography
chemical_list: D015796:HLA-B27 Antigen
vernacular_title: Sacroiliite piogênica em paciente portador de HLA B27.