Extracerebral Pterional Metastasis from Malignant Meningioma: A Case Report

Abstract

Anaplastic or malignant meningiomas that are classified as World Health Organization (WHO) grade III account for less than 1% of all meningiomas diagnosed. Despite the aggressive course, distant metastases are a rarity, occurring in only 0.1% to 0.2% of cases. We report the case of a 56-year-old woman who presented with parasagittal benign meningioma that underwent malignant transformation along with metastasis into the right orbitosphenoid region. The clinical, radiological, and histopathological aspects are highlighted, with an emphasis on the natural history of meningiomas.

Resumo

Meningiomas anaplásicos ou malignos classificados como grau III da Organização Mundial da Saúde (OMS) representam menos de 1% de todos os meningiomas diagnosticados. Apesar do curso agressivo, as metástases à distância são raras, ocorrendo em apenas 0,1% a 0,2% dos casos. Relatamos o caso de uma mulher de 56 anos que apresentou meningioma benigno parassagital que sofreu transformação maligna e metástase para a região orbito esfenoidal direita. São destacados os aspectos clínicos, radiológicos e histopatológicos, com destaque para a história natural dos meningiomas.

Keywords

atypical meningioma - malignant meningioma - metastasis

Palavras-chave

meningioma atípico - meningioma maligno - metástase

Publikationsverlauf

Eingereicht: 09. Juli 2020

Angenommen: 16. November 2020

Artikel online veröffentlicht:
15. Februar 2021

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