A symptomatic large subependymoma with neuroradiological features mimicking a high-grade glioma: A case report

A subependymoma is a benign primary brain tumor classified as a World Health Organization grade I tumor; it is asymptomatic in most cases. We present the case of a 66-year-old Japanese man with a complaint of recurrent vomiting that led to the discovery of a large mass with hemorrhage, peritumoral e...

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Veröffentlicht in:Neurocirugia (Asturias, Spain) Spain), 2019-07, Vol.30 (4), p.193-197
Hauptverfasser: Hanashima, Yuya, Homma, Taku, Maebayashi, Toshiya, Igarashi, Takahiro, Ishige, Toshiyuki, Hao, Hiroyuki, Yoshino, Atsuo
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container_issue 4
container_start_page 193
container_title Neurocirugia (Asturias, Spain)
container_volume 30
creator Hanashima, Yuya
Homma, Taku
Maebayashi, Toshiya
Igarashi, Takahiro
Ishige, Toshiyuki
Hao, Hiroyuki
Yoshino, Atsuo
description A subependymoma is a benign primary brain tumor classified as a World Health Organization grade I tumor; it is asymptomatic in most cases. We present the case of a 66-year-old Japanese man with a complaint of recurrent vomiting that led to the discovery of a large mass with hemorrhage, peritumoral edema, and a midline shift in the posterior horn of the right lateral ventricle. The patient was pathologically diagnosed with subependymoma after undergoing total tumor resection; a year after the surgery, he was free from tumor recurrence. Although symptomatic subependymomas are rare, they tend to show hemorrhage with peritumoral edema on neuroradiological tests and tend to be confused with high-grade brain tumors. In the present case, we highlight the importance of the appropriate diagnosis for subependymomas showing neuroradiological features that mimic high-grade gliomas. This diagnosis will help in providing suitable treatment for subependymomas. Un subependimoma es un tumor cerebral primario benigno, clasificado por la Organización Mundial de la Salud como un tumor grado I. En la mayoría de los casos es asintomático. Presentamos el caso de un varón japonés de 66 años de edad que reportaba vómitos recurrentes, los que lo llevaron al descubrimiento de una gran masa con hemorragia, edema peritumoral y una desviación de la línea media del cuerno posterior del ventrículo lateral derecho. Se le realizó un diagnóstico patológico de subependimoma luego de que se le sometiera a una resección total del tumor. Un año después de la cirugía no presentaba recurrencia del tumor. Aunque los subependimomas sintomáticos son raros, en las pruebas neurorradiológicas tienden a presentar hemorragia con edema peritumoral y se tiende a confundirlos con tumores cerebrales de alto grado. En el presente caso, destacamos la importancia de un diagnóstico adecuado de los subependimomas que presentan características neurorradiológicas que imitan a gliomas de alto grado. Este diagnóstico ayudará a brindar el tratamiento adecuado para dichos subependimomas.
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We present the case of a 66-year-old Japanese man with a complaint of recurrent vomiting that led to the discovery of a large mass with hemorrhage, peritumoral edema, and a midline shift in the posterior horn of the right lateral ventricle. The patient was pathologically diagnosed with subependymoma after undergoing total tumor resection; a year after the surgery, he was free from tumor recurrence. Although symptomatic subependymomas are rare, they tend to show hemorrhage with peritumoral edema on neuroradiological tests and tend to be confused with high-grade brain tumors. In the present case, we highlight the importance of the appropriate diagnosis for subependymomas showing neuroradiological features that mimic high-grade gliomas. This diagnosis will help in providing suitable treatment for subependymomas. Un subependimoma es un tumor cerebral primario benigno, clasificado por la Organización Mundial de la Salud como un tumor grado I. En la mayoría de los casos es asintomático. 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identifier ISSN: 1130-1473
ispartof Neurocirugia (Asturias, Spain), 2019-07, Vol.30 (4), p.193-197
issn 1130-1473
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2529-8496
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subjects Cerebro
Cerebrum
Lateral ventricle
Neuroradiology
Neurorradiología
Sintomático
Subependimoma
Subependymoma
Symptomatic
Ventrículo lateral
title A symptomatic large subependymoma with neuroradiological features mimicking a high-grade glioma: A case report
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