Histological and Immunohistochemical Study of 30 Cases of Canine Meningioma

Montoliu, Patrícia; Añor, S.; Vidal, Enríc; Pumarola, M.

doi:10.1016/j.jcpa.2006.06.006

Cited by 67 publications

(114 citation statements)

References 16 publications

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“…The typical finding in this type of meningioma is a spiral array appearance mostly located around capillary vessels (Koestner et al 1999). In the case reported here, the diagnosed meningioma was of the transitional type and was consistent with previously published cases (Koestner et al 1999;Montoliu et al 2006) in its general microscopic findings. However, we did not observe the previously described psammoma bodies in the centre of the spirals.…”

Section: Discussionsupporting

confidence: 93%

“…Meningiomas generally show intradural-extramedullary localisation (Kippenes et al 1999). It has been reported that, in dogs, a large percentage of meningiomas develop intracranially (Summers et al 1995) and less frequently in the spinal cord (Montoliu et al 2006). Spinal meningiomas are mostly benign in nature with intradural-extramedullary location in the cervical segments (Bosschere et al 2003;Asano et al 2005).…”

Section: Discussionmentioning

confidence: 99%

“…Different neurological findings occur depending on the location, compression upon nervous tissue, destruction, oedema and bleeding (Asano et al 2005). Histologically, meningiomas are classified as meningothelial, fibroblastic, transitional, psammomatous, angioblastic, papillary, granular cell, myxoid and anaplastic meningiomas (Bosschere et al 2003;Montoliu et al 2006).…”

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confidence: 99%

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Intramedullary spinal cord meningioma in a Boxer: a case report

et al. 2015

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Meningiomas are the most common primary tumours of the canine central nervous system. The incidence of these tumours increases with age and they are more frequently encountered in dogs older than seven years. Meningiomas are solitary, well-defined neoplasias that more commonly grow via compression and less commonly by infiltrating the nervous tissue. Meningiomas exhibit 82% intracranial, 15% intraspinal and 3% retrobulbar location. Meningiomas of the spinal cord are mostly benign in character with intradural-extramedullary location in the cervical segments. The case reported here consisted of a 10-year old male Boxer presenting with a complaint of inability to use its left foreleg. In the neurological examination, upper motor neuron findings were recorded and direct radiography, myelography and magnetic resonance imaging (MRI) of the cervical region were performed. Interpretation of the transversal, coronal and sagittal cross-section magnetic resonance images taken of T1-weighted, T2-weighted and T1-weighted with contrast sequences, revealed a well-defined intramedullary mass at the level of the C5-C6 vertebra. Histopathological examination of the neoplastic mass revealed it to be a transitional (mixed) meningioma which had infiltrated into the spinal cord.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

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confidence: 99%

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Intramedullary spinal cord meningioma in a Boxer: a case report

et al. 2015

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“…Quanto aos G-I, outros estudos foram relativamente semelhantes na frequência de ocorrência, perfazendo 53% dos casos (Petersen et al 2008) ou 56% . O subtipo psamomatoso foi o mais frequente (35,7%) dentre os G-I neste estudo, sendo considerado incomum (Montoliu et al 2006) ou nem relatado por outros autores (Patnaik et al 1986, Barnhart et al 2002, Petersen et al 2008, sugerindo ser relativamente raro na literatura internacional. Na maioria dos estudos (Petersen et al 2008, José-López et al 2013, os subtipos meningotelial e transicional são os mais comuns, sendo que neste trabalho cada um representou 21,4% dos G-I, ambos obtendo a segunda maior frequência nesse grau.…”

Section: Discussionunclassified

“…Essa variedade histológica é reflexo da contribuição do mesoderma e da crista neural para a sua formação (Koestner & Higgins 2002). Não há predisposição sexual em cães (Patnaik et al 1986), entretanto, mulheres apresentam maior incidência de meningiomas (Koestner & Higgins 2002, Montoliu et al 2006.…”

Section: Introductionunclassified

Graduação histológica e aspectos clínico-patológicos relacionados em 22 meningiomas de cães

et al. 2018

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Intracranial and supratentorial meningiomas were the most frequent in relation to the other intracranial or intraspinal sites. The intracranial ones were characterized mainly by clinical signs of thalamic-cortical alteration. Intraspinal ones were mainly characterized by ataxia. G-I meningiomas were the most frequent (63.6%) in dogs, followed by G-III (22.7%) and G-II (13.6%). GI were characterized by having the psammomatous subtype as the most frequent, more than one morphological pattern in the same tumor, one third presenting areas of invasion of nervous tissue, 71.4% of cases involving females, a mean age of 11 years, pure breed dogs as the most affected ones and for having the longest survival time after the manifestation of clinical signs. G-II meningiomas were characterized by having the chordoid subtype as the most frequent, invasion of nervous tissue in one third of cases, only females affected, a mean age of 12 years, two-thirds of the dogs affected were mongrels and the maximum survival time of 20 days. The G-III meningiomas were characterized by having the papillary subtype as the most frequent, invasion of the nervous tissue in 80% of the cases, 60% of the cases involving females, a mean age of 8 years, 80% of dogs affected were Boxers and the maximum survival time of 90 days. In conclusion, this study allowed to establish a relationship between the three histological grades observed in 22 cases of meningiomas in dogs with various clinical-epidemiological and pathological parameters, providing useful information for a better understanding of the correlation between the histological grading and the clinical evolution of these neoplasms.

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Acquired diseases of the optic nerve

2018

Histologic Basis of Ocular Disease in Animals

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Histological and Immunohistochemical Study of 30 Cases of Canine Meningioma

Cited by 67 publications

References 16 publications

Intramedullary spinal cord meningioma in a Boxer: a case report

Intramedullary spinal cord meningioma in a Boxer: a case report

Graduação histológica e aspectos clínico-patológicos relacionados em 22 meningiomas de cães

Acquired diseases of the optic nerve

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