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http://dx.doi.org/10.4142/jvs.21219

Muscular and collagenous cerebellar choristoma in a dog  

Ripplinger, Angel (Programa de Pos Graduacao em Medicina Veterinaria, Universidade Federal de Santa Maria (UFSM))
de Melo, Stella Maris Pereira (Programa de Pos Graduacao em Medicina Veterinaria, Universidade Federal de Santa Maria (UFSM))
Ferrarin, Denis Antonio (Programa de Pos Graduacao em Medicina Veterinaria, Universidade Federal de Santa Maria (UFSM))
Schwab, Marcelo Luis (Programa de Pos Graduacao em Medicina Veterinaria, Universidade Federal de Santa Maria (UFSM))
Wrzesinski, Mathias Reginatto (Programa de Pos Graduacao em Medicina Veterinaria, Universidade Federal de Santa Maria (UFSM))
Rauber, Julia da Silva (Programa de Pos Graduacao em Medicina Veterinaria, Universidade Federal de Santa Maria (UFSM))
Flores, Mariana Martins (Departamento de Morfologia, Laboratorio de Patologia Veterinaria, Universidade Federal de Santa Maria (UFSM))
Kommers, Glaucia Denise (Departamento de Morfologia, Laboratorio de Patologia Veterinaria, Universidade Federal de Santa Maria (UFSM))
Mazzanti, Alexandre (Departamento de Clinica de Pequenos Animais, Universidade Federal de Santa Maria (UFSM))
Publication Information
Journal of Veterinary Science / v.23, no.2, 2022 , pp. 30.1-30.6 More about this Journal
Abstract
This report aims to describe the first case of muscular and collagenous choristoma in a dog. A 10-yr-old female mixed-breed dog presented with lateral recumbence, vocalization, positional vertical nystagmus, divergent strabismus, anisocoria, and status epilepticus. The clinical condition evolved to stupor and ultimately, death. Necropsy revealed a white mass causing an irregular increase in the volume of the cerebellar vermis. In histological analysis, a well circumscribed, unencapsulated mass was observed in the cerebellum, consisting of fibers of striated skeletal muscle and collagen fibers, mostly mineralized. Based on the histopathological and histochemical findings, a diagnosis of muscular and collagenous cerebellar choristoma was made.
Keywords
Choristoma; cerebellum; dog; neuropathology; immunohistochemistry;
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