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KMID : 0893420220230020030
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Journal of Veterinary Science
2022 Volume.23 No. 2 p.30 ~ p.30
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Muscular and collagenous cerebellar choristoma in a dog
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Angel Ripplinger
Stella Maris Pereira de Melo
Denis Antonio Ferrarin
Marcelo Luis Schwab
Mathias Reginatto Wrzesinski
Julia da Silva Rauber
Mariana Martins Flores
Glaucia Denise Kommers
Kim Chan-Young
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Abstract
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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.
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KEYWORD
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Choristoma, cerebellum, dog, neuropathology, immunohistochemistry
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