Caseous lymphadenitis by Corynebacterium pseudotuberculosis in a Saanen dairy goat (Capra hircus aegagrus)
2010
Shin, D.H., National Veterinary Research and Quarantine Service, Anyang, Republic of Korea | Song, Y.K., National Veterinary Research and Quarantine Service, Anyang, Republic of Korea | Byun, J.W., National Veterinary Research and Quarantine Service, Anyang, Republic of Korea | Kim, H.Y., National Veterinary Research and Quarantine Service, Anyang, Republic of Korea | Kim, H.S., National Veterinary Research and Quarantine Service, Anyang, Republic of Korea | Woo, G.H., National Veterinary Research and Quarantine Service, Anyang, Republic of Korea | Lee, O.S., National Veterinary Research and Quarantine Service, Anyang, Republic of Korea | Jung, B.Y., National Veterinary Research and Quarantine Service, Anyang, Republic of Korea
Caseous lymphadenitis (CLA) is a chronic and contagious disease of sheep and goats caused by Corynebacterium (C.) pseudotuberculosis. A four-year-old female Saanen dairy goat was submitted to the Animal Disease Diagnostic Center at National Veterinary Research and Quarantine Service. The clinical signs of the goat were emaciation, abortion and quadriplegia. The multifocal nodules of lymph nodes were encapsulated and filled with whitish caseous contents on the cut surface. Histopathologically, lymph nodes displayed suppurative and necrotizing granulomas. Caseous necrosis was diffusely observed in the center of the lymph nodes. Gram positive bacilli were shown in the lesions. C. pseudotuberculosis was isolated and confirmed by the biochemical tests and PCR assay. Based on clinical signs, histopathological examination and bacterial isolation, we diagnosed this case as CLA. To our knowledge, this is the first report of CLA in a Saanen dairy goat in Korea.
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