J Vet Sci.
2022 Mar;23(2):e30. 10.4142/jvs.21219.
Muscular and collagenous cerebellar choristoma in a dog
- Ripplinger A
1 - Melo SMPd1
- Ferrarin DA1
- Schwab ML1
- Wrzesinski MR1
- Rauber JdS1
- Flores MM2
- Kommers GD2
- Mazzanti A3
- Affiliations
-
- 1Programa de Pós Graduação em Medicina Veterinária, Universidade Federal de Santa Maria (UFSM), 97105-900 Santa Maria, RS, Brazil
- 2Departamento de Morfologia, Laboratório de Patologia Veterinária, Universidade Federal de Santa Maria (UFSM), 97105-900 Santa Maria, RS, Brazil
- 3Departamento de Clínica de Pequenos Animais, Universidade Federal de Santa Maria (UFSM), 97105-900 Santa Maria, RS, Brazil
- KMID: 2527890
- DOI: http://doi.org/10.4142/jvs.21219
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.
