Description    Abscesses are common in goats and sheep. Usually due to the pleomorphic, facultative intracellular, Gram-positive rod CORYNEBACTERIUM PSEUDOTUBERCULOSIS (Caseous Lymphadenitis) but other organisms might be isolated particularly ACTINOMYCES in goats. Lesions might be found in various parts of the body following spread from skin or lung abscesses; if the udder is invaded there can be mastitis. Visceral abscesses in sheep and goats without external abscessation can cause wasting.
Species   Caprine, Ovine
Signs   Abnormal upper airway breathing sounds, Abortion or weak newborns, Agalactia, Anestrus, Anorexia, Coughing, Diarrhea, Dullness, Dysphagia, Dyspnea, Female infertility, Forelimb lameness, Forelimb swelling, Generalized lameness or stiffness, Generalized weakness, Head, face, ears, jaw, nose, nasal, swelling, Hindlimb lameness, Hindlimb swelling, Increased respiratory rate, Lack of growth or weight gain, Lymphadenopathy, Mammary gland swelling, Mastitis, Neck swelling, Purulent discharge skin, Rough hair coat, Skin fistula, Sudden death, Swelling skin or subcutaneous, Swelling, mass external abdomen, Thoracic swelling, Underweight, poor condition, thin, emaciated, unthriftiness, ill thrift, Weight loss
References   Chakraborty S et al. Advances in Diagnosis of Respiratory Diseases of Small Ruminants. Veterinary Medicine International 2014;Article ID 508304 [Web Reference]
Debien E et al. Proportional mortality: A study of 152 goats submitted for necropsy from 13 goat herds in Quebec, with a special focus on caseous lymphadenitis. Can Vet J 2013;54:581587 [Web Reference]
Chikhaoui M, Khoudja FB. Clinicopathological investigation on caseous lymphadenitis in local breed sheep in Algeria. Tropical Animal Health and Production 2013;45:1641-1643 [Web Reference]
Washburn KE et al. Serologic and bacteriologic culture prevalence of Corynebacterium pseudotuberculosis infection in goats and sheep and use of Bayesian analysis to determine value of assay results for prediction of future infection. Journal of the American Veterinary Medical Association 2013;242:997-1002 [Web Reference]
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