Idiopathic eosinophilic myositis in Korean native cattle (Bos taurus coreanae)
2008
Rhee, S.H. (Chonbuk National University, Jeonju, Republic of Korea) | Yu, I.J. (Chonbuk National University, Jeonju, Republic of Korea) | Kim, J.H. (Chonbuk National University, Jeonju, Republic of Korea) | Kwon, J.K. (Chonbuk National University, Jeonju, Republic of Korea) | Park, J.H. (Chonbuk National University, Jeonju, Republic of Korea) | You, M.J. (Chonbuk National University, Jeonju, Republic of Korea) | Lee, J.W. (Jeongeup Branch, Institute of Livestock and Veterinary Research, Jeongeup, Republic of Korea) | Park, H.J. (Chonbuk National University, Jeonju, Republic of Korea) | Chekarova, Irina (Chonbuk National University, Jeonju, Republic of Korea) | Camer, Gerry Amor (University of Eastern Philippines, Catarman, Northern Samar, Philippines) | Lim, C.W. (Chonbuk National University, Jeonju, Republic of Korea) | Kim, B.S. (Chonbuk National University, Jeonju, Republic of Korea), E-mail: bskims@chonbuk.ac.kr
Eosinophilic myositis lesions are characterized by severe eosinophil infiltration along muscles of affected animals. The exact cause of the lesion remains controversial and the carcass is condemned once this lesion is seen during meat inspection. A cow slaughtered in Chonbuk province, Korea was observed to have disseminated pale foci throughout the musculature; meat samples were obtained and macroscopically investigated. Cut ends of neck and thigh muscle tissues showed variably sized, multifocal pale white-grayish nodular lesions. Histopathological examination consistently revealed inflammatory lesions with adjacent infiltration of eosinophilic granulocytes and focal necrotic calcification. However, no parasites, including Sarcocystis sp., could be discerned in the affected carcass. This case was diagnosed as idiopathic eosinophilic myositis in cattle.
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