Merck Manual

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Orchitis, buck
Orchitis, buck

Bilateral orchitis in a breeding buck presented for deterioration in semen quality. Ultrasound showed nodules and several pockets of fluid in both testicles. Aspiration and culture of the lesions revealed Corynebacterium pseudotuberculosis.

Courtesy of Dr. Jamie Stewart and the Diagnostic Imaging Department, University of Illinois at Urbana-Champaign.