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Navigating a stealthy invader: Insights from two different Streptococcus intermedius cases

Erica Casey Anders1, Stanley Miller1

  • 1Department of Internal Medicine, Edward Via College of Osteopathic Medicine, Carolinas Campus, USA.

Journal of Family Medicine and Primary Care
|February 24, 2025
PubMed

Insights

Severe bacterial infections caused by Streptococcus intermedius can present with varied systemic symptoms. Early consideration in differential diagnoses is crucial due to its potential to mimic other conditions.

Area of Science:

  • Microbiology
  • Infectious Diseases

Background:

  • Streptococcus intermedius, part of the Streptococcus milleri group, is a commensal bacterium.
  • It is recognized for its potential to cause severe, systemic infections.

Observation:

  • Two cases of Streptococcus intermedius infection are presented.
  • Case 1: A 53-year-old male with liver, lung, and brain lesions.
  • Case 2: An 84-year-old female with bacteremia and liver abscesses.

Findings:

  • Streptococcus intermedius infections can manifest with a wide range of clinical symptoms.
  • The bacterium can mimic other infections or pathological conditions.

Implications:

  • There are currently no standardized protocols for screening or managing Streptococcus intermedius infections.
  • Maintaining Streptococcus intermedius on the differential diagnosis list is essential until confirmed negative by culture or PCR.
Keywords:
BacteremiaStreptococcus intermediusliver abscesspyogenic infections

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