%0 Case Reports
%T Case report of arthritis caused by Legionella anisa and review of the literature.
%A Roussotte M
%A Massy E
%J BMC Infect Dis
%V 22
%N 1
%D Jul 2022 20
%M 35858834
%F 3.667
%R 10.1186/s12879-022-07475-3
%X <B>BACKGROUND: </B>Legionella spp. is recognized as a common cause of community acquired pneumonia, with Legionella pneumophila serogroup 1 being the most prevalent. At least 70 species are described so far but few are identified in pathogenic conditions. Data on extrapulmonary infections are scarce.<BR><B>METHODS: </B>A 73-yar-old male with chronic lymphoid leukemia was hospitalized for an insidious wrist arthritis. Ultrasound of the wrist showed a carpal and radiocarpal fluid effusion with positive Doppler signal. While routine bacterial cultures remained sterile, 16S rRNA PCR identified Legionella anisa. Ciprofloxacin 500 mg twice a day for a period of six weeks improved arthritis with full recovery at the end of the treatment.<BR><B>CONCLUSIONS: </B>Legionella non pneumophila are a rare cause of septic arthritis especially found in immunosuppressed patients and identification of species could help clinician to adapt antibiotherapy.