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Revista de Medicina Veterinaria
Print version ISSN 0122-9354On-line version ISSN 2389-8526
Abstract
ORTLOFF-TRAUTMANN, Alexander R.; NEUMANN-VASQUEZ, Javier A. and VALBUENA-MORA, José. Morphological and Immunohistochemical Description of a Lymphoma in a Two-Month-Old Lamb Using MUM1/IRF4, CD79a, CD3, CD10 and Ki67 Markers. Rev. Med. Vet. [online]. 2019, n.38, pp.63-71. ISSN 0122-9354. https://doi.org/10.19052/mv.vol1.iss38.6.
This article contains a morphological description of a case of early presentation lymphoma in a lamb, characterised by its unusual clinical history and advanced lesions. The primary tumour was located in the skin in the carpal region, and metastases were observed in the brain, right eye, all the pulmonary lobes, the myocardium and endocardium of the heart, left adrenal gland, abdominal portion of the vagal nerve, serosa of the rumen, the body of lumbar vertebra L3, and the submandibular, mediastinal and mesenteric lymph nodes. Histopathological examination revealed that it was a large cell lymphoma. Immunohistochemical analysis was carried out with antibodies for MUM1/IRF4, CD79a, CD3, CD10 and Ki67, used here for the first time as markers to characterise a lymphoma in this species. The result revealed that it was a B-cell lymphoma.
Keywords : Lymphoma; lamb; immunohistochemical; metástasis.