Canine meningioma: A case report of a rare subtype and novel atlanto basioccipital surgical approach

Barreau, P.; Dunn, Katie; Fourie, Y.

doi:10.3415/vcot-09-12-0127

Cited by 6 publications

(3 citation statements)

References 18 publications

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“…[ 5 , 10 ] Our team has found only two case reports on surgical treatment of posterior fossa tumors. [ 2 , 9 ] We have operated on two dogs with cerebellopontine meningioma [ Figures 3 and 10 ]. One dog died immediately after surgery due to cardiac failure; the other survived without any deficit but succumbed 10 months later due to renal failure.…”

Section: Discussionmentioning

confidence: 99%

Meningiomas in dogs

Beneš

Margoldová²,

Bradáč

et al. 2021

Surgical Neurology International

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Background: Meningiomas and gliomas are the two most common types of human intracranial tumors. However, meningiomas are not exclusively human tumors and are often seen in dogs and cats. Methods: To present meningioma surgery in dogs and compare the surgical possibilities, tumor location, and to show the differences between human and veterinary approaches to tumor profiling. Eleven dogs with meningiomas were treated surgically for 5 years. All tumors except one were resected radically (Simpson 2). Localization of tumors mirrored that of human meningiomas. Results: Two dogs died in direct relation to surgery. One died 14 months after surgery due to tumor regrowth. Three dogs died of unrelated causes 10–36 months after tumor resection and five dogs are alive and tumor-free 2–42 months after surgery. Conclusion: Radical surgery in dogs is as effective as in humans. Thus, we propose that it should be implemented as first-line treatment. The article is meant to please all those overly curious neurosurgeons in the world.

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Section: Discussionmentioning

confidence: 99%

Meningiomas in dogs

Beneš

Margoldová²,

Bradáč

et al. 2021

Surgical Neurology International

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“…Surgical approaches to the brain have been defined in the dog and for many of the approaches, modifications and refinements have also been described. 2,[6][7][8][9][10][11][12][13] Of the surgical approaches described in dogs, the rostrotentorial approach has been used successfully in the cat to access neoplasms that involve the cerebrum. 5,14 However, few modifications of the other surgical approaches have been studied in the cat.…”

Section: Discussionmentioning

confidence: 99%

A lateral approach to the feline cerebellar fossa: case report and identification of an external landmark for the tentorium ossium

Kent

Glass²,

Schachar³

2019

Journal of Feline Medicine and Surgery

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Objectives The aim of this study was to describe the use of an external landmark that defines the attachment of the tentorium ossium for planning a craniectomy to access the cerebellar fossa. The external landmark was defined by a line where the caudal aspect of the convexity of the cranium transitions to a flat surface in the caudal aspect of the temporal fossa. We also aimed to determine if this external landmark was present and readily visualized, and to establish its relationship to the nuchal crest using three-dimensional (3D) volume-rendered CT reconstructions created from cats with normal cranial morphology. Methods First, a case is presented for the description of an approach in a cat with a meningioma located dorsolateral to the cerebellum. Second, CT studies of five cats with normal cranial morphology were selected. Regions of interest (ROIs) were drawn at the attachment of the tentorium ossium to the cranium and nuchal crest. Three-dimensional reconstructions were developed with colored ROI overlays. The external landmark defined the tentorial attachment on all 3D reconstructions. Additionally, using the postoperative CT of the clinical case described herein, ROIs of the tentorial attachment and nuchal crest along with a third ROI, the craniectomy, were drawn and overlaid on the 3D reconstruction to illustrate the position of the craniectomy in relation to the tentorium ossium attachment and nuchal crest. Results The use of the external landmark provided for a craniectomy that enabled adequate visualization for excision of a meningioma. On all 3D reconstructions, the external landmark was present and readily visualized. Conclusions and relevance Between the attachment of the tentorium ossium and nuchal crest exists an area adequately sized for a craniectomy in cats. Clinicians can use an identifiable external landmark on the lateral aspect of the cranium to plan the rostral boundary for a craniectomy to access the cerebellar fossa in cats.

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“…Para meningiomas rostrotentoriais, a expectativa de vida após a cirurgia é de aproximadamente 14 meses (Suñol et al 2017). Por outro lado, quando os meningiomas estão localizados na região infratentorial, como no tronco cerebral, os casos de sucesso são menos frequentes, com um tempo de sobrevida variando entre 3, 5 e 18 meses após a cirurgia realizada por meio de uma abordagem atlantobasioccipital (Barreau et al 2010;Ijiri et al 2013). É importante observar que a cirurgia para remoção de massas diencefálicas, por meio de uma abordagem trans-etmoidal, não é recomendada devido ao risco associado de hipertermia, hipernatremia e mortalidade pós-operatória (Marino et al 2014).…”

Section: Tratamentounclassified

Meningioma em animais domésticos: revisão de literatura

Leite,

Guimarães,

Liegel

et al. 2024

Arch. Health

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As neoplasias que afetam o sistema nervoso central (SNC) são observadas em animais domésticos, com mais estudos concentrados em cães e gatos. O meningioma é um tipo de tumor que se origina nas camadas médias da meninge, conhecidas como aracnoide. Representa uma parte significativa dos tumores intracranianos em cães e é semelhante aos meningiomas encontrados em humanos. Pode surgir em várias áreas do encéfalo e, em alguns casos, pode ter características diferentes, como cistos ou componentes de sangramento. À medida que crescem, os meningiomas podem comprimir o tecido encefálico ao seu redor. Os meningiomas são classificados com base em características celulares, comportamento biológico e padrões de crescimento. Em cães, não há preferência de gênero, mas em humanos, eles são mais comuns em mulheres. Algumas raças, como Golden Retrievers, Boxers, Schnauzers Miniatura e Rat Terriers, têm uma maior predisposição para desenvolver meningiomas. Embora muitas vezes sejam classificados como benignos do ponto de vista histológico, os meningiomas em cães podem representar desafios de saúde e bem-estar devido à sua localização intracraniana. Portanto, mesmo sendo classificados como benignos, esses tumores frequentemente têm um comportamento biológico maligno. A classificação histológica dos meningiomas em cães é semelhante à dos humanos, com graus I, II e III, refletindo o potencial maligno e a tendência à recorrência. A prevalência de neoplasias intracranianas em cães aumenta com a idade, sendo os meningiomas mais comuns em cães mais velhos. O diagnóstico é realizado por meio de exames de imagem, como ressonância magnética, e a confirmação é obtida por análises histopatológicas. O tratamento pode incluir cirurgia para a remoção completa ou parcial do tumor, radioterapia e quimioterapia, dependendo da localização, tamanho e tipo do tumor. No entanto, o prognóstico pode variar conforme diversos fatores, incluindo a extensão da cirurgia, a localização do tumor e o tipo histológico.

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Canine meningioma: A case report of a rare subtype and novel atlanto basioccipital surgical approach

Abstract: Basioccipital approach combined with cranial atlanto corpectomy can be performed to relieve compression of the caudal brainstem and cranial cervical cord.

Cited by 6 publications

References 18 publications

Meningiomas in dogs

Meningiomas in dogs

A lateral approach to the feline cerebellar fossa: case report and identification of an external landmark for the tentorium ossium

Meningioma em animais domésticos: revisão de literatura

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