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Tumor maligno da bainha de nervo periférico em cães: relato de três casos Malignant peripheral nerve sheath tumor in dogs: three cases report

By C.M.O. Silva, F.M.C. Caldeira, E.G. Melo, N.M. Ocarino, A.E. Silva, R.M.C. Guedes, G.E. Lavalle and R. Serakides

Abstract

Descrevem-se os achados anatomoclínicos e imunoistoquímicos dos tumores da bainha de nervos periféricos em três cães atendidos em hospital. Os animais apresentavam sintomatologia variável de acordo com a localização do tumor. À microscopia, as neoplasias eram invasivas e constituídas por células pleomórficas e anaplásicas que variavam de poligonais a fusiformes, arranjadas em padrão sólido difuso, por vezes em paliçada. Foi firmado o diagnóstico de tumor da bainha de nervos periféricos nos três casos.<br>Anatomo-clinical and immunohistochemical findings on three dogs with peripheral nerve sheath tumors assisted at the veterinary hospital are described. Animals showed different clinical signs depending on the location of the tumor. According to microscopy, neoplasia in all the three case were invasive and comprised of pleomorphic, anaplastic with polygonal to very elongated fusiform shapes arranged in a diffuse solid pattern, forming interwoven bundles in some areas. Immunohistochemistry was used to better classify these tumors. The diagnosis of peripheral nerve sheath tumor was confirmed by histological and immunohistochemical findings

Topics: cão, tumor da bainha de nervos periféricos, imunoistoquímica, dog, peripheral nerve sheath tumor, immunohistochemistry, Zoology, QL1-991, Science, Q, DOAJ:Zoology, DOAJ:Biology, DOAJ:Biology and Life Sciences, Animal culture, SF1-1100, Agriculture, S, DOAJ:Animal Sciences, DOAJ:Agriculture and Food Sciences
Publisher: Universidade Federal de Minas Gerais
Year: 2007
DOI identifier: 10.1590/S0102-09352007000300020
OAI identifier: oai:doaj.org/article:86a3f230947747a6b1d4bcc07b6af67e
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