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Use Of Ultrasound In A Case Of Actinomycosis In A Holstein Friesian Cow, Alessio Madrigali, Francesca Bonelli, Micaela Sgorbini, Simonetta Citi, Carlo Cantile, Filippo Fratini, Luca Turini

The Thai Journal of Veterinary Medicine

Actinomycosis is a sporadic disease of cattle, caused by Actinomyces bovis. In presence of oral injuries or openings, A. bovis could penetrate tissues and infect maxilla or mandible bones. A Holstein Friesian cow was presented for inappetence, weight loss and a left-sided mandibular swelling. A unilateral swelling was visible on the left jaw as a ventro-lateral and circular in shape. A fine-needle aspiration was collected. Ultrasonography examination was performed. Bacteriological analysis was negative. Due to the history, actinomycosis diagnosis was suggested and the cow was culled. Pathological examination revealed lesions indicative of chronic pyogranulomatous mandibular osteomyelitis with intralesional colonies of …