Infiltrative subependymoma of the brainstem: an uncommon presentation

Ribeiro, Bruno Niemeyer de Freitas; Mourão, Rodrigo da Silva; Muniz, Bernardo Carvalho; Ventura, Nina

doi:10.1590/0100-3984.2017.0186

Radiol Bras

2019

DOI: 10.1590/0100-3984.2017.0186

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Infiltrative subependymoma of the brainstem: an uncommon presentation

Bruno Niemeyer de Freitas Ribeiro

Rodrigo da Silva Mourão

Bernardo Carvalho Muniz

et al.

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“… 1 , 2 Compared to ependymomas, subependymomas arise from different bipotential cells, which may differentiate into astrocyte or ependymal cells. 3 Aggressive behavior is rarely reported, 4 and patients are usually asymptomatic or tumors are found incidentally on autopsy. 5 The frequent use of magnetic resonance imaging (MRI) increases their detection.…”

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confidence: 99%

Lateral ventricle subependymoma resected with a transcallosal approach: illustrative case

Rubino

Catalino

Almeida

et al. 2023

Journal of Neurosurgery: Case Lessons

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BACKGROUND Subependymomas are World Health Organization grade I tumors, and 30% occur in the lateral ventricles. Surgery is the mainstay of treatment, and the transcallosal or transcortical/transsulcal approaches are preferred for those tumors occurring near the foramen of Monro or atrium. Visualization, proximity to the fornix and basal ganglia, hydrocephalus, and brain retraction during surgery make these operations challenging. The authors present the case of a 65-year-old male with a subependymoma located in the left lateral ventricle. The tumor was completely resected using an interhemispheric/transcallosal approach. OBSERVATIONS The authors analyze the anatomopathological features of subependymoma, along with the clinical behavior and therapeutic options. The authors discuss in detail the advantages and disadvantages of the interhemispheric/transcallosal approach for resection of these tumors. LESSONS Subependymomas are slow-growing lesions with an indolent yet complicated course making surgical removal challenging yet feasible using the correct techniques. The interhemispheric transcallosal approach offers an excellent route for the resection of large subependymomas, but there is still a significant risk for postoperative complications.

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mentioning

confidence: 99%

Lateral ventricle subependymoma resected with a transcallosal approach: illustrative case

Rubino

Catalino

Almeida

et al. 2023

Journal of Neurosurgery: Case Lessons

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Non-neoplastic intracranial cystic lesions: not everything is an arachnoid cyst

Pereira¹,

Ribeiro

Lima³

et al. 2021

Radiol Bras

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Intracranial cystic lesions are common findings on neuroimaging examinations, arachnoid cysts being the most common type of such lesions. However, various lesions of congenital, infectious, or vascular origin can present with cysts. In this pictorial essay, we illustrate the main causes of non-neoplastic intracranial cystic lesions, discussing their possible differential diagnoses as well as their most relevant imaging aspects.

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Infiltrative subependymoma of the brainstem: an uncommon presentation

Cited by 2 publications

References 9 publications

Lateral ventricle subependymoma resected with a transcallosal approach: illustrative case

Lateral ventricle subependymoma resected with a transcallosal approach: illustrative case

Non-neoplastic intracranial cystic lesions: not everything is an arachnoid cyst

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