A case of Escherichia coli and Peptoniphilus species mixed osteomyelitis successfully identified by MALDI TOF-MS with a review of the literature

Diana Isabela Costescu Strachinaru, Jean-Luc Gallez, Marie-Sophie Paridaens, Sarah Djebara, Olivier Soete, Patrick Soentjens

Research output: Contribution to journalA1: Web of Science-articlepeer-review


BACKGROUND: Peptoniphilus species are Gram-positive anaerobic cocci that are commensals of the human vagina and gut.

METHODS AND RESULTS: We describe a case of mixed Escherichia coli and Peptoniphilus spp. osteomyelitis identified using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry as Peptoniphilus harei and present a short literature review.

CONCLUSION: To our knowledge, only six cases of P. harei osteomyelitis have been reported to date.

Original languageEnglish
JournalActa Clinica Belgica
Issue number1
Pages (from-to)126-129
Number of pages4
Publication statusPublished - 2022


  • Escherichia coli
  • Female
  • Humans
  • Osteomyelitis
  • Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization

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