Charles Louis Davis and Samuel Wesley Thompson DVM Foundation

For the Advancement of Veterinary and Comparative Pathology

info@cldavis.org | Phone: 847-367-4359 | Fax: 847-247-1869

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Image: F28639

Pathology Image
  • SPECIES:
    • EQUINE
  • SYSTEM:
    • SKELETAL
  • ORGAN:
    • BURSA
  • DIAGNOSIS:
    • PYOGRANULOMATOUS SUPRASPINOUS BURSITIS; FISTULOUS WITHERS
  • CONTRIBUTOR:
    • WILLIAMS
  • INSTITUTION:
    • Armed Forces Institute of Pathology
  • GENPATH:
    • BACTERIA
  • COMMENTS:
    • Infection of the supraspinous bursa has tranditionally been called "fisulous withers, and most commonly is the result of bacterial emboli. Historically, it is been associated with infecton by various species of Brucella, but with the incidence of brucellosis having undergone a sharp decline in the past few decades - the majority of cases now are likely the result of Streptococcus zooepidemicus var equi or rarely other bacteria, such as nocardio or actinomyces (possibly as a result of traumatic implantation.)