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Arq. bras. med. vet. zootec ; 67(1): 32-36, 2/2015. tab
Article in English | LILACS | ID: lil-741102

ABSTRACT

With the purpose of shedding light on some doubts in veterinary oncology, the present article intends to compare the results of histopathological and immunohistochemical examinations of unspecific round cell neoplasia, to realize immunophenotyping of canine lymphoma cases, to establish the T or B origin of neoplastic cells, and to determine the degree of proliferation and apoptosis of lymphomas by immunohistochemistry. Of 11 animals presenting immunohistochemical diagnosis of lymphoma, five had been diagnosed as Lymphoma by HE staining of histopathological slides and six had been classified as unspecific round cell neoplasia. All cases submitted to immunohistochemical examination were T-cell lymphomas. There was a positive correlation between cell proliferation and apoptosis. The comparison among histopathological and immunohistochemical results obtained in the cases examined in the present study suggested that immunohistochemistry is essential for the differentiation of round cell neoplasia.


Com o objetivo de sanar algumas dúvidas na área da oncologia veterinária, o presente artigo pretende comparar os resultados dos exames histopatológicos e imuno-histoquímicos de neoplasias de células redondas inespecíficas, realizar imunofenotipagem dos casos de linfoma canino e determinar o grau de proliferação e apoptose de linfomas. Dos 11 animais que apresentaram diagnóstico imuno-histoquímico de linfoma, cinco foram diagnosticados como linfoma por coloração HE das lâminas histopatológicas e seis foram classificados como neoplasia de células redondas inespecíficas. Todos os casos submetidos ao exame imuno-histoquímico foram de linfomas de células-T. Houve uma correlação positiva entre a proliferação celular e apoptose. A comparação entre os resultados histopatológicos e imuno-histoquímicos obtidos nos casos analisados sugeriu que a imuno-histoquímica é essencial para a diferenciação das neoplasias de células redondas.


Subject(s)
Animals , Dogs , Lymphoma/classification , Neoplastic Cells, Circulating/immunology , Neoplastic Cells, Circulating/pathology
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