G124

Gram – Breast wound: neutrophils, gram positive cocci (Staphylococcus lugdunensis) – Shipped February 2013

HISTORY

A simulated breast wound smear collected from a 45 year old female patient was sent to category A, B, C, and C1 laboratories for Gram staining.

Participants were expected to report the presence of gram positive cocci and neutrophils. Correlation with results obtained for the companion culture, M124-3, was also expected from labs that received the culture sample.

MAIN EDUCATIONAL POINTS from G124

  1. The presence of gram positive cocci and neutrophils should be correlated with the culture results to support the significance of S. lugdunensis isolated from a sterile body site.
  2. S. lugdunensis is now recognized as a significant pathogen capable of causing severe wound and abscess infections.

 

Full critique (PDF)

Posted in Clinical Bacteriology Results, critiques, Gram