title: Nalidixic acid-resistant Salmonella enterica serotype Typhi presenting as a primary psoas abscess: case report and review of the literature.
abstract: We report an unusual case of Salmonella enterica serotype Typhi presenting as a primary psoas abscess. The isolate tested susceptible to ciprofloxacin but resistant to nalidixic acid in vitro, a pattern associated with fluoroquinolone therapeutic failures. We review the literature for serovar Typhi psoas abscess in the absence of bacteremia and discuss the importance of identifying isolates with reduced susceptibility to fluoroquinolones.
authors.affiliation: University of Utah School of Medicine, University of Hospitals and Clinics, Salt Lake City, UT, USA.
authors.forename: William A
authors.initials: WA
authors.lastname: Shakespeare
authors.forename: Daniel
authors.initials: D
authors.lastname: Davie
authors.forename: Claude
authors.initials: C
authors.lastname: Tonnerre
authors.forename: Michael A
authors.initials: MA
authors.lastname: Rubin
authors.forename: Michael
authors.initials: M
authors.lastname: Strong
authors.forename: Cathy A
authors.initials: CA
authors.lastname: Petti
mesh_terms: D000328:Adult; D000890:Anti-Infective Agents / Q000494:pharmacology*; D024881:Drug Resistance, Bacterial; D006801:Humans; D008297:Male; D008826:Microbial Sensitivity Tests; D009268:Nalidixic Acid / Q000494:pharmacology*; D016659:Psoas Abscess / Q000382:microbiology*; D016658:Psoas Muscles / Q000000981:diagnostic imaging; D012485:Salmonella typhi / Q000187:drug effects* / Q000302:isolation & purification; D014057:Tomography, X-Ray Computed; D014435:Typhoid Fever / Q000382:microbiology*
chemical_list: D000890:Anti-Infective Agents; D009268:Nalidixic Acid