Multiple hepatic and brain abscesses caused by Parvimonas micra: A case report and literature review

N Cesta1, L Foroghi Biland1, B Neri2

  • 1Department of System Medicine, University of Rome "Tor Vergata", Rome, Italy; Infectious Diseases Clinic, University Hospital "Tor Vergata", Rome, Italy.

Anaerobe
|April 16, 2021
PubMed

Insights

Gram-positive anaerobic cocci cause many infections. Parvimonas micra, an emerging pathogen, was linked to liver and brain abscesses in a patient with complicated diverticulitis.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Clinical Medicine

Background:

  • Gram-positive anaerobic cocci (GPAC) account for 30% of anaerobic infections.
  • Parvimonas micra is a commensal bacterium of oral and gastrointestinal flora.
  • Advancements in diagnostics highlight P. micra's emerging role in infections.

Observation:

  • P. micra bacteremia is observed in immunocompromised individuals.
  • This condition is frequently complicated by abscess formation.
  • A case of P. micra bacteremia leading to hepatic and brain abscesses is presented.

Findings:

  • The study details a case of multiple hepatic and brain abscesses.
  • These abscesses were caused by Parvimonas micra bacteremia.
  • The patient had a history of complicated diverticulitis.

Implications:

  • This case underscores the potential pathogenicity of P. micra.
  • It highlights the importance of considering P. micra in polymicrobial infections.
  • Improved diagnostic methods are crucial for identifying P. micra as a causative agent.