%0 Journal Article %A Martín-Gutiérrez, Guillermo %A Rodríguez, Nancy %A Lepe, José Antonio %A Parody, Rocío %A Torres, María José %A Aznar, Javier %T Rapid identification of a Leptotrichia trevisanii catheter-related bloodstream infection using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry %D 2015 %J JMM Case Reports, %V 2 %N 4 %@ 2053-3721 %C e000036 %R https://doi.org/10.1099/jmmcr.0.000036 %K Leptotrichia trevisanii %K MALDI-TOF %K catheter-related infection %I Microbiology Society, %X Introduction: Leptotrichia trevisanii is a large, fusiform, non-sporulating, motile, Gram-negative rod, and is a member of the family Fusobacteriaceae in the phylum Fusobacteria. Although L. trevisanii bacteraemia is extremely rare, severe infections have been reported in immunocompromised patients. Case presentation: We present a case of a 69-year-old woman diagnosed with diffuse large B-cell lymphoma, who suffered a catheter-related bloodstream infection due to L. trevisanii during the post-autologous peripheral blood progenitor-cell transplantation aplasia phase. In this case, rapid identification of the opportunistic pathogen was achieved using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry directly from a blood culture, with correct identification of the micro-organism within 2 h after the blood culture became positive. Conclusion: Rapid identification of this opportunistic pathogen allowed initiation of appropriate antimicrobial therapy, which contributed to a successful clinical outcome for the patient. %U https://www.microbiologyresearch.org/content/journal/jmmcr/10.1099/jmmcr.0.000036