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Vol. 33. Issue 5.
Pages 242-249 (September - October 2022)
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Vol. 33. Issue 5.
Pages 242-249 (September - October 2022)
Case Report
Myxofibrosarcoma: Another mimicker of meningioma
Mixofibrosarcoma: otro imitador del meningioma
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Thiago Bezerra Matiasa, Mateus dal Fabbrob, Luciano de Souza Queirozc, Fabiano Reisa,
Corresponding author
fabianoreis2@gmail.com

Corresponding author.
a Department of Radiology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, SP, Brazil
b Department of Neurology and Neurosurgery, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, SP, Brazil
c Department of Pathology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, SP, Brazil
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Abstract

Primary intracranial malignant fibrous histiocytoma (MFH), or myxofibrosarcoma, is an extremely rare condition, with only a few cases reported in the literature. We report a case of a dural-based myxofibrosarcoma in a previously healthy 42-year-old man that was initially presumed to be an atypical meningioma. The findings based on conventional and advanced magnetic resonance sequences, including diffusion-weighted imaging, perfusion weighted imaging and proton magnetic resonance spectroscopy, as well as histopathological aspects, are discussed.

Keywords:
Meningioma
Magnetic resonance imaging
Myxofibrosarcoma
Brain tumor
Spectroscopy
Resumen

El histiocitoma fibroso maligno intracraneal primario (HFM) o mixofibrosarcoma, es una condición extremadamente rara, con solo unos pocos casos reportados en la literatura. Presentamos un caso de mixofibrosarcoma de base dural en un varón de 42 años, previamente sano, que inicialmente se presumió que era un meningioma atípico. Se discuten los hallazgos basados en secuencias de resonancia magnética convencionales y avanzadas, que incluyen imágenes ponderadas por difusión, imágenes ponderadas por perfusión y espectroscopía de resonancia magnética de protones, así como aspectos histopatológicos.

Palabras clave:
Meningioma
Imagen de resonancia magnética
Mixofibrosarcoma
Tumor cerebral
Espectroscopia

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