Bacteraemia caused by Leptotrichia trevisanii in a neutropenic patient

Anaerobe. 2011 Feb;17(1):1-3. doi: 10.1016/j.anaerobe.2010.12.002. Epub 2010 Dec 22.


We describe an episode of Leptotrichia trevisanii bacteraemia in a neutropenic hemato-oncology patient receiving chemotherapy for Refractory Anemia with Excess Blasts-2 (RAEB-2). Although Leptotrichia spp. colonize the oral cavity and genitourinary tract, serious episodes of bacteraemia might occur in immunocompromised patients, particularly in those with severe neutropenia. Therefore, microbiologists should consider the possibility of Leptotrichia spp. septicemia in patients with blood cultures positive for gram negative bacilli, when routine microbiology tests fail to reveal a correct identification of the organism.

Publication types

  • Case Reports

MeSH terms

  • Bacteremia / diagnosis*
  • Drug Therapy / methods
  • Drug-Related Side Effects and Adverse Reactions
  • Fusobacteriaceae Infections / diagnosis*
  • Hematologic Neoplasms / complications
  • Humans
  • Immunocompromised Host
  • Leptotrichia / isolation & purification*
  • Male
  • Middle Aged
  • Neutropenia / chemically induced
  • Neutropenia / complications*