Cite this page: DePond W. Yersinia pestis. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/lymphnodesyersiniapestis.html. Accessed July 5th, 2020.
Definition / general
- Infection is usually limited to lymph nodes ("bubo," as in bubonic plague)
- Pneumonic plague occurs if bacterial are aerosolized (eMedicine: Plague [Accessed 2 July 2018], Wikipedia: Bubonic Plague [Accessed 2 July 2018])
Microscopic (histologic) description
- Depletion of lymphocytes, edema, necrosis, foamy macrophages
- Bacteria may involve blood vessels
Positive stains
- Yersinia immunostain (Am J Clin Pathol 2002;117:205)
