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https://www.arca.fiocruz.br/handle/icict/24939
CANINE LOW-GRADE INTRA-ORBITAL MYXOSARCOMA: CASE REPORT
Author
Affilliation
Federal University of Minas Gerais. Biological Science Institute. Laboratory of Comparative Pathology. Department of General Pathology. Belo Horizonte, MG, Brazil
Federal University of Minas Gerais. Biological Science Institute. Laboratory of Comparative Pathology. Department of General Pathology. Belo Horizonte, MG, Brazil
Federal University of Minas Gerais. Biological Science Institute. Laboratory of Comparative Pathology. Department of General Pathology. Belo Horizonte, MG, Brazil
Federal University of Minas Gerais. Biological Science Institute. Laboratory of Comparative Pathology. Department of General Pathology. Belo Horizonte, MG, Brazil
Federal University of Minas Gerais. Biological Science Institute. Laboratory of Comparative Pathology. Department of General Pathology. Belo Horizonte, MG, Brazil
Federal University of Minas Gerais. Biological Science Institute. Laboratory of Comparative Pathology. Department of General Pathology. Belo Horizonte, MG, Brazil
Federal University of Minas Gerais. Biological Science Institute. Laboratory of Comparative Pathology. Department of General Pathology. Belo Horizonte, MG, Brazil
Federal University of Minas Gerais. Biological Science Institute. Laboratory of Comparative Pathology. Department of General Pathology. Belo Horizonte, MG, Brazil
Federal University of Minas Gerais. Biological Science Institute. Laboratory of Comparative Pathology. Department of General Pathology. Belo Horizonte, MG, Brazil
Federal University of Minas Gerais. Biological Science Institute. Laboratory of Comparative Pathology. Department of General Pathology. Belo Horizonte, MG, Brazil
Federal University of Minas Gerais. Biological Science Institute. Laboratory of Comparative Pathology. Department of General Pathology. Belo Horizonte, MG, Brazil
Federal University of Minas Gerais. Biological Science Institute. Laboratory of Comparative Pathology. Department of General Pathology. Belo Horizonte, MG, Brazil
Federal University of Minas Gerais. Biological Science Institute. Laboratory of Comparative Pathology. Department of General Pathology. Belo Horizonte, MG, Brazil
Abstract
The aim of this study was to evaluate important clinical, morphological, histopathological, histochemical, and immunohistochemical characteristics in order to establish the diagnosis and prognosis of a low-grade intra-orbital myxosarcoma. Animal studied A mongrel dog presented a 2-year history of a neoplastic mass behind
the right eye.
Results The neoplasm presented a mesenchymal spindle and stellate cell proliferation
with an abundant myxoid matrix, moderate anisocariosis, and a low mitotic index. It
stained positive for vimentin, moderately positive for periodic acid-Schiff, and negative
for Gomori trichrome stain and a-smooth muscle actin.
Conclusions One year following surgical excision, the patient remains disease free. The
histological findings established a diagnosis of a rare canine intra-orbital low-grade
myxosarcoma.
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