A rare retrobulbar and chiasmal meningioma in a dog
| Autor: | Dênis Antonio Ferrarin, Walter V.C. Areco, Graciane Aiello, Júlia da Silva Rauber, Mariana M. Flores, Marcelo Luís Schwab, Alexandre Mazzanti, Angel Ripplinger |
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| Rok vydání: | 2019 |
| Předmět: |
Neurological signs
genetic structures canine Optic chiasm lcsh:Agriculture Meningioma Head pressing neoplasma ocular Papillary Meningioma Medicine In patient lcsh:Agriculture (General) Right optic nerve General Veterinary business.industry meningioma papilar lcsh:S 0402 animal and dairy science 04 agricultural and veterinary sciences Anatomy central nervous system medicine.disease lcsh:S1-972 040201 dairy & animal science eye diseases ocular neoplasm canino medicine.anatomical_structure Ophthalmologic examination sistema nervosa central 040103 agronomy & agriculture 0401 agriculture forestry and fisheries papillary meningioma Animal Science and Zoology sense organs business Agronomy and Crop Science |
| Zdroj: | Ciência Rural v.49 n.7 2019 Ciência Rural Universidade Federal de Santa Maria (UFSM) instacron:UFSM Ciência Rural, Vol 49, Iss 7 Ciência Rural, Volume: 49, Issue: 7, Article number: e20180970, Published: 15 JUL 2019 |
| ISSN: | 1678-4596 0103-8478 |
| DOI: | 10.1590/0103-8478cr20180970 |
| Popis: | A 14-year-old female Dachshund was referred to a veterinary hospital with a history and signalment of head pressing, compulsive walking, and right circling. At ophthalmologic examination, a mature cataract and absence of photomotor reflex in the right eye were observed. The neurological exam revealed multifocal encephalic signs. At necropsy, a conical solid tan mass was observed involving the right optic nerve throughout its extension to the optic chiasm. Histopathological findings confirmed a retrobulbar papillary meningioma, considered rare and seldom included as differential diagnosis in patients with neurological signs. RESUMO: Uma fêmea Dachshund de 14 anos de idade foi encaminhada para um hospital veterinário universitário com histórico e manifestação de “head pressing”, andar compulsivo e em círculos para o lado direito. No exame oftalmológico foi diagnosticado catarata matura bilateral e ausência de reflexo fotomotor pupilar no olho direito. O exame neurológico revelou sinais encefálicos multifocais. Na necropsia, uma massa sólida cônica, branco-amarelada, foi observada envolvendo o nervo óptico em toda a sua extensão até o quiasma óptico. O exame histopatológico confirmou diagnóstico de meningioma papilar retrobulbar, considerado raro e pouco incluído no diagnóstico diferencial de pacientes com sinais neurológicos. |
| Databáze: | OpenAIRE |
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