Ana C.M.R. Bernardo, Telma S. Lima, Silvio M.C. Fonseca, Givaldo B. Silva-Filho, Hisadora A.S.C. Bom, Elizandra T. Melo, João P.G. Silva, Fábio S. Mendonça
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Bilateral perirenal fat necrosis in a sambar deer (Rusa unicolor)
ABSTRACT: The gross and histopathological findings of perirenal fat necrosis in a sambar deer (Rusa unicolor) are described in a 6-year-old female deer that was necropsied after showing severe apathy, weight loss, recumbency, and death. At post-mortem examination, two large white to yellow, irregular, and encapsulated masses involving both kidneys were observed. Microscopically, these masses consisted of fat tissue presenting multifocal to coalescing areas of necrosis, diffuse infiltration of lymphocytes, macrophages, occasional plasma cells, and multinucleated giant cells. Multifocally, the necrotic sites were replaced by mineralization and fibrosis. The described condition has not been reported in deer and the exact mechanisms of development of perirenal fat necrosis remain to be determined. Massive fat necrosis has been reported in other animal species such as dogs, cats, pigs, goats, cattle, and whales (Balaena mysticetus). It is usually an incidental finding during post-mortem examination that needs to be differentiated from neoplasms originating from the adipose tissue, kidneys and adrenals, and disorders resulting from pancreatitis and obesity.
期刊介绍:
Pesquisa Veterinária Brasileira - Brazilian Journal of Veterinary Research (http://www.pvb.com.br), edited by the Brazilian College of Animal Pathology in partnership with the Brazilian Agricultural Research Organization (Embrapa) and in collaboration with other veterinary scientific associations, publishes original papers on animal diseases and related subjects. Critical review articles should be written in support of original investigation. The editors assume that papers submitted are not being considered for publication in other journals and do not contain material which has already been published. Submitted papers are peer reviewed.
The abbreviated title of Pesquisa Veterinária Brasileira is Pesqui. Vet. Bras.