Perineural arachnoidal gliomatosis: case report Gliomatose aracnoidal perineural: relato de caso

Gliomas are the most common infiltrative neoplasms of the optic nerve and can present as two distinct growth patterns: intraneural glial proliferation and perineural arachnoidal gliomatosis (PAG). It has been suggested that perineural arachnoidal gliomatosis is seen almost exclusively in the setting...

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Main Authors: Luciano Sousa Pereira, Timothy James McCulley
Format: Article
Language:English
Published: Conselho Brasileiro de Oftalmologia 2008-08-01
Series:Arquivos Brasileiros de Oftalmologia
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492008000400026
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spelling doaj-0d52f3911ec54af59b285696828e68312020-11-24T23:18:42ZengConselho Brasileiro de OftalmologiaArquivos Brasileiros de Oftalmologia0004-27491678-29252008-08-0171459559810.1590/S0004-27492008000400026Perineural arachnoidal gliomatosis: case report Gliomatose aracnoidal perineural: relato de casoLuciano Sousa PereiraTimothy James McCulleyGliomas are the most common infiltrative neoplasms of the optic nerve and can present as two distinct growth patterns: intraneural glial proliferation and perineural arachnoidal gliomatosis (PAG). It has been suggested that perineural arachnoidal gliomatosis is seen almost exclusively in the setting of neurofibromatosis type 1 (NF1). We describe a child with perineural arachnoidal gliomatosis occurring without neurofibromatosis type 1, supported by both radiographic and histological findings. A 4-year-old female without neurofibromatosis type 1 presented with rapidly progressive right-sided proptosis. Magnetic resonance imaging (MRI) revealed an enhancing fusiform intraconal lesion, which was hypointense on T1 and hyperintense on T2-weighted images: characteristic of perineural arachnoidal gliomatosis, the optic nerve was visualized coursing the tumor. Histopathologic study was consistent with perineural arachnoidal gliomatosis. Perineural arachnoidal gliomatosis can develop independent of neurofibromatosis type 1, as demonstrated by this case.<br>Gliomas são as neoplasias infiltrativas mais freqüentes do nervo óptico e podem se apresentar através de dois padrões distintos de crescimento: proliferação glial intraneural e gliomatose aracnoidal perineural. Existem evidências de que a gliomatose aracnoidal perineural é vista quase exclusivamente em pacientes com neurofibromatose tipo 1. Descrevemos um caso de gliomatose aracnoidal perineural ocorrendo em criança sem neurofibromatose tipo 1, comprovado tanto por achados radiológicos quanto histológicos. Uma criança de quatro anos de idade, do sexo feminino, sem evidências de neurofibromatose tipo 1, apresentou quadro de proptose à direita rapidamente progressiva. Ressonância magnética revelou lesão intraconal fusiforme hipointensa em T1 e hiperintensa em T2 - característico de gliomatose aracnoidal perineural, o nervo óptico pôde ser observado atravessando o tumor. O estudo histológico foi consistente com gliomatose aracnoidal perineural. Gliomatose aracnoidal perineural pode se desenvolver independente da presença de neurofibromatose tipo 1, como demonstrado por esse caso.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492008000400026Glioma de nervo ópticoNeurofibromatoseRessonância magnéticaHumanoFemininoCriançaRelatos de casosOptic nerve gliomaNeurofibromatosisMagnetic resonance imagingHumanFemaleChildCase reports
collection DOAJ
language English
format Article
sources DOAJ
author Luciano Sousa Pereira
Timothy James McCulley
spellingShingle Luciano Sousa Pereira
Timothy James McCulley
Perineural arachnoidal gliomatosis: case report Gliomatose aracnoidal perineural: relato de caso
Arquivos Brasileiros de Oftalmologia
Glioma de nervo óptico
Neurofibromatose
Ressonância magnética
Humano
Feminino
Criança
Relatos de casos
Optic nerve glioma
Neurofibromatosis
Magnetic resonance imaging
Human
Female
Child
Case reports
author_facet Luciano Sousa Pereira
Timothy James McCulley
author_sort Luciano Sousa Pereira
title Perineural arachnoidal gliomatosis: case report Gliomatose aracnoidal perineural: relato de caso
title_short Perineural arachnoidal gliomatosis: case report Gliomatose aracnoidal perineural: relato de caso
title_full Perineural arachnoidal gliomatosis: case report Gliomatose aracnoidal perineural: relato de caso
title_fullStr Perineural arachnoidal gliomatosis: case report Gliomatose aracnoidal perineural: relato de caso
title_full_unstemmed Perineural arachnoidal gliomatosis: case report Gliomatose aracnoidal perineural: relato de caso
title_sort perineural arachnoidal gliomatosis: case report gliomatose aracnoidal perineural: relato de caso
publisher Conselho Brasileiro de Oftalmologia
series Arquivos Brasileiros de Oftalmologia
issn 0004-2749
1678-2925
publishDate 2008-08-01
description Gliomas are the most common infiltrative neoplasms of the optic nerve and can present as two distinct growth patterns: intraneural glial proliferation and perineural arachnoidal gliomatosis (PAG). It has been suggested that perineural arachnoidal gliomatosis is seen almost exclusively in the setting of neurofibromatosis type 1 (NF1). We describe a child with perineural arachnoidal gliomatosis occurring without neurofibromatosis type 1, supported by both radiographic and histological findings. A 4-year-old female without neurofibromatosis type 1 presented with rapidly progressive right-sided proptosis. Magnetic resonance imaging (MRI) revealed an enhancing fusiform intraconal lesion, which was hypointense on T1 and hyperintense on T2-weighted images: characteristic of perineural arachnoidal gliomatosis, the optic nerve was visualized coursing the tumor. Histopathologic study was consistent with perineural arachnoidal gliomatosis. Perineural arachnoidal gliomatosis can develop independent of neurofibromatosis type 1, as demonstrated by this case.<br>Gliomas são as neoplasias infiltrativas mais freqüentes do nervo óptico e podem se apresentar através de dois padrões distintos de crescimento: proliferação glial intraneural e gliomatose aracnoidal perineural. Existem evidências de que a gliomatose aracnoidal perineural é vista quase exclusivamente em pacientes com neurofibromatose tipo 1. Descrevemos um caso de gliomatose aracnoidal perineural ocorrendo em criança sem neurofibromatose tipo 1, comprovado tanto por achados radiológicos quanto histológicos. Uma criança de quatro anos de idade, do sexo feminino, sem evidências de neurofibromatose tipo 1, apresentou quadro de proptose à direita rapidamente progressiva. Ressonância magnética revelou lesão intraconal fusiforme hipointensa em T1 e hiperintensa em T2 - característico de gliomatose aracnoidal perineural, o nervo óptico pôde ser observado atravessando o tumor. O estudo histológico foi consistente com gliomatose aracnoidal perineural. Gliomatose aracnoidal perineural pode se desenvolver independente da presença de neurofibromatose tipo 1, como demonstrado por esse caso.
topic Glioma de nervo óptico
Neurofibromatose
Ressonância magnética
Humano
Feminino
Criança
Relatos de casos
Optic nerve glioma
Neurofibromatosis
Magnetic resonance imaging
Human
Female
Child
Case reports
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492008000400026
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