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KMID : 1023520160390030199
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Korean Journal of Veterinary Service
2016 Volume.39 No. 3 p.199 ~ p.204
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Malignant melanoma in a grey pony, Korea
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Kim Ji-Hyeon
Lee Hyun-Kyoung
Lee Kyung-Hyun
Baek Kang-hyun
Choi Eun-Jin
So Byung-Jae
Yang Si-Yeon
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Abstract
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A 16 year-old female grey pony was presented to Animal and Plant Quarantine agency for diagnosis in Feb 2, 2015. At necropsy, multiple pigmented masses, likely melanomas, were detected peri-anally and under the tail. Further metastatic spread to the spleen, liver, lung and lymph nodes was also identi-fied. Histopathologically, anaplastic and pleomorphic melanocytes were observed in the mass. By im-munohistochemistry, PNL2, S100 and PGP 9.5 protein were detected, but Melan A was not expressed in the neoplastic melanocytes. Based on the pathological and immunohistochemical examination, we di-agnosed this case as malignant melanoma in a grey pony. To the authors` knowledge, this is the first report of equine malignant melanoma in republic of Korea.
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KEYWORD
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Grey horse, Malignant melanoma, Metastasis
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