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Bacteraemia due to Parvimonas micra, a commensal pathogen, in a patient with an oesophageal tumour
  1. Rafael García Carretero1,
  2. Esther Luna-Heredia2,
  3. Monica Olid-Velilla2,
  4. Oscar Vazquez-Gomez2
  1. 1Hospital Universitario de Mostoles, Mostoles, Madrid, Spain
  2. 2Department of Internal Medicine, Hospital Universitario de Mostoles, Mostoles, Madrid, Spain
  1. Correspondence to Dr Rafael García Carretero, rgcarretero{at}


A man aged 53 years was admitted to our hospital due to general malaise, fever and chills for the past 24 hours. He had a history of chronic alcoholic liver disease. The blood tests showed leucocytosis with neutrophilia, lactic acidosis and acute-phase reactants. The blood cultures were positive for Parvimonas micra, an anaerobic pathogen which is part of the flora of the oral cavity. There was no evidence of abscess formation in either the examination or the imaging tests, but in the work-up that followed, a gastroscopy showed a stenotic oesophageal mass that turned out to be an invasive squamous cell carcinoma.

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  • Twitter Follow Rafael García Carretero at @rafa_linux

  • Contributors RGC wrote the first draft; EL-H and MO-V made interesting suggestions; OV-G helped in the translation into English.

  • Competing interests None declared.

  • Patient consent Obtained.

  • Provenance and peer review Not commissioned; externally peer reviewed.