title: Acute septic arthritis due to Streptococcus sanguis.
abstract: OBJECTIVE
  To present a case of acute septic arthritis due to Streptococcussanguis, a member of the viridans group streptococci.
  
  
  METHODS
  A 73-year-old woman presented with fever and increasing swelling and pain of the right knee several weeks after she had been treated for severe periodontal disease. Arthrocentesis yielded purulent synovial fluid. S. sanguis was isolated in synovial fluid cultures, and the patient was treated with intravenous cefotaxime for 3 weeks and repeated aspiration of the knee joint with gradual resolution of fever, joint swelling and effusion.
  
  
  CONCLUSIONS
  Although S. sanguis is believed to be a rare cause of septic arthritis in native joints, it should be considered in the differential diagnosis of this disorder, especially in patients with recent treatment of severe dental caries and periodontal disease.
authors.affiliation: Department of Medicine, Psychiatric Hospital of Attica, Athens, Greece. dipapaio@otenet.gr
authors.forename: Demetrios
authors.initials: D
authors.lastname: Papaioannides
authors.forename: Loukia
authors.initials: L
authors.lastname: Boniatsi
authors.forename: Panagiotis
authors.initials: P
authors.lastname: Korantzopoulos
authors.forename: Demetrios
authors.initials: D
authors.lastname: Sinapidis
authors.forename: Christos
authors.initials: C
authors.lastname: Giotis
mesh_terms: D000208:Acute Disease; D000368:Aged; D000900:Anti-Bacterial Agents / Q000008:administration & dosage / Q000627:therapeutic use; D001170:Arthritis, Infectious / Q000188:drug therapy* / Q000382:microbiology*; D002439:Cefotaxime / Q000008:administration & dosage / Q000627:therapeutic use; D005260:Female; D006115:Greece; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology; D013290:Streptococcal Infections; D013298:Streptococcus sanguis / Q000302:isolation & purification / Q000472:pathogenicity*
chemical_list: D000900:Anti-Bacterial Agents; D002439:Cefotaxime