Korean J Vet Res > Volume 55(2); 2015 > Article
Korean Journal of Veterinary Research 2015;55(2):149-152.
DOI: https://doi.org/10.14405/kjvr.2015.55.2.149    Published online June 24, 2015.
A case of malignant dysgerminoma in a slaughtered dairy cow
Ji-Youl Jung1, Ji-Woong Her1, Yea-Ji Jeong1, Kyung-Nyer Ku2, Kwon-Rac Choi2, Byung-Jae So1, Soon-Seek Yoon1
1Division of Animal Disease Diagnosis, Animal and Plant Quarantine Agency
2Gyeonggi-do Veterinary Service
도축 젖소에서 발생한 악성 난소생식세포종 증례보고
정지열1, 허지웅1, 정예지1, 구경녀2, 최권락2, 소병재1, 윤순식1
1농림축산검역본부 질병진단과
2경기도 축산위생연구소
An abnormally enlarged right ovary and a mass in fat surrounding the right kidney were discovered in a dairy cow during routine postmortem examination at slaughter. The ovary was dark reddish and multinodular in shape. Numerous cystic structures were identified in the mass. Histopathologically, the ovary was completely replaced with large, uniform, polyhedral neoplastic cells containing vesicular nuclei and prominent nucleoli. The mitotic index was high. In the lymphatic vessels, tumor emboli were observed. Another mass in the fat surranding the right kidney had the same histological features as the ovarian mass. This animal was diagnosed with malignant dysgerminoma and metastasis to other peritoneal organs.
Key Words: dairy cow, dysgerminoma, metastasis, ovary

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