G203

Gram – Brain abscess: 6-10/oif (3+) neutrophils, 11-50/oif (3+) gram positive cocci (Streptococcus anginosus) – Shipped November 02, 2020

HISTORY

A simulated brain abscess sample collected from a 42-year-old male with headache was sent to category A and C1 laboratories.  Participants were expected to report neutrophils and gram positive cocci.

MAIN EDUCATIONAL POINTS from G203

  1. Brain abscesses are often purulent and should have high numbers of neutrophils. Lack of neutrophils may represent sampling or laboratory error, or an incorrect diagnosis.
  2. Many pathogens may be involved in brain abscesses, and these may be polymicrobial. Streptococcus anginosus is a common pathogen in such infections

 

Full critique (PDF)

Posted in Clinical Bacteriology Results, critiques, Gram