title: Pleural infection caused by Capnocytophaga canimorsus, formerly CDC group DF-2.
abstract: An 80-year-old man with Waldenström's macroglobulinemia developed pneumonia and empyema due to Capnocytophaga canimorsus (formerly CDC group DF-2). No growth was detected in blood cultures, but the organism was identified from cultures of pleural fluid. The infection responded well to antibiotics and drainage via a chest tube. To our knowledge, this is the first report of a clinical isolate of C. canimorsus from a pulmonary source. The absence of concurrent bacteremia raises the possibility that the lower respiratory tract can be the site of primary infection with this organism.
authors.affiliation: Division of Infectious Diseases and Immunology, St. Louis University School of Medicine, Missouri 63104.
authors.forename: G W
authors.initials: GW
authors.lastname: Chambers
authors.forename: T U
authors.initials: TU
authors.lastname: Westblom
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002206:Capnocytophaga / Q000302:isolation & purification; D016905:Gram-Negative Bacterial Infections / Q000382:microbiology*; D006801:Humans; D008297:Male; D010995:Pleural Diseases / Q000382:microbiology*