A one-year-old, intact male, Staffordshire terrier was presented to his veterinarian for enlarged testicles and pitting edema of the scrotum. Serum and testicular tissue was submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) for testing. A rapid slide agglutination test was negative for Brucella canis. Methicillin-resistant Staphylococcus pseudintermedius (MRSP) was isolated from the testicular and scrotal tissues; both tissues were culture negative for Brucella.
Staphylococcus pseudintermedius is both a commensal organism of the skin and mucous membranes as well as a major pathogen of dogs. Isolation of Methicillin- resistant strains are a problem of increasing concern for veterinarians. Culture and susceptibility testing were crucial in identifying the source of this patient’s clinical condition.
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REFERENCES
Quinn, P.J., Markey B.K., Leonard F. C., FitzPatrick E.S., Fanning S, Hartigan P.J., (2011) Veterinary Microbiology and Microbial Disease, 179-187