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Cerebral vascular hamartoma in a Campeiro Bulldog

Barros, Rafaela Magalhães; Gugelmin, Gustavo Andrade; Barreto, Lucas Silva; Almeida, Ana Maria de Souza; Wilson, Tais Meziara; Machado, Mizael; Pereira, Alexandra Ariadine Bittencourt Gonçalves; Castro, Márcio Botelho de.
Acta Sci. vet.; 48(suppl.1): Pub. 483, Feb. 4, 2020. ilus
Artigo em Inglês | VETINDEX | ID: vti-24500

Resumo

Background: Vascular hamartomas (VH) are rare or simply underdiagnosed injuries in veterinary medicine and represent a non-neoplastic developmental anomaly disorganization and proliferation of endothelial tissue. VH occur in any region of the body, however in the brain present clinical relevance related with the potential for spontaneous bleeding, adjacent tissue compression and convulsive activity. The aim of these reports is to describe clinical, pathological and immunohistochemical features of a case of cerebrovascular hamartoma and highlight the diagnosis of these rare brain disorder in dogs. Case: A 10-year-old male dog, a Campeiro Bulldog breed presented convulsions episodes and died before an elective surgical procedure for eyelid nodule removal. Three red nodules were observed in the brain, one between the parietal lobe and the left occipital lobe (in the medium suprasylviam sulcus), the other in the caudal region of the corpus callosum and the third one in the cerebellar cortex. Central nervous system, eyelids and most organs and tissues samples were collected, fixed in 10% formaldehyde and processed for histopathological analysis. Histologically, in the eyelid was detected a sebaceous adenoma. The nervous system samples revealed well-differentiated sizes vascular structures with thin-walled and blood-filled, promoting compression of the brain. Normal neuropile was detected between the vascular structures substantiating cerebral vascular hamartoma diagnosis in the dog. Immunohistochemical assay was conducted with CD31 (monoclonal mouse antibody anti-CD31, Clone JC70A, Dako Corp.) and Von Willebrand factor (monoclonal mouse antibody anti-Von Willebrand factor, Clone F8/86, Dako Corp.) using the biotin–peroxidase–streptavidin method (PolyDetector Plus DAB–HRP, Bio SB) on CNS sections to confirm the vascular origin of the lining cells in the mass….(AU)
Biblioteca responsável: BR68.1
Localização: BR68.1