Priapism in a Thoroughbred Gelding Associated with Metastatic S. equi Infection

A 12-year-old Thoroughbred gelding was presented to the North Carolina State University College of Veterinary Medicine for acute priapism and weight loss. A physical examination was unremarkable except for poor body condition (BCS 2/9) and complete protrusion of the erect penis. The penis was reduced into the prepuce following irrigation of the corpus cavernosum with heparinized saline, injection of 10 mg of phenylephrine into the corpus cavernosum, and manual massage using nitrofurazone and DMSO ointment. [...]