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Child's Nervous System

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01-08-2020 | Glioma | Review Article

Management of incidental brain tumors in children: a systematic review

Authors: Jehuda Soleman, Danil A. Kozyrev, Liat Ben-Sira, Shlomi Constantini, Jonathan Roth

Published in: Child's Nervous System | Issue 8/2020

Abstract

Background

Due to technical advancements and availability of neuroimaging, detection of incidental pediatric brain tumors (IPBT) is growing rapidly. The management of these asymptomatic lesions remains unclear; radiological, pathological, and clinical risk factors for further growth and malignant transformation (MT) are not well defined.

Methods

We systematically reviewed the literature on the dilemmas and management of IPBT suggestive of a low-grade brain tumor (LGBT). Keyword searches of the PubMed and Medline (NCBI) databases identified studies on IPBT describing the prevalence, neuroimaging, management, or risk of MT through July 2019. References of the identified articles were also reviewed.

Results

A total of 2021 records were screened. Fifty-nine full-text articles were reviewed, and 34 published studies were included. IPBT are diagnosed in 0.2–5.7% of children undergoing brain imaging for various reasons. The accepted approach for management of lesions showing radiological characteristics suggestive of LGBT is radiological follow-up. The rate at which additional intervention is required during follow-up for these apparently low-grade lesions is 9.5%. Nevertheless, the dilemma of early surgical resection or biopsy vs. clinical and radiological follow-up of IPBT is still unresolved. The risk in these cases is missing a transformation to a higher grade tumor. However, MT of pediatric LGBT is very rare, occurring in less than 3% of the cases of proven low-grade gliomas in children. The risk of future MT in pediatric low-grade gliomas seems to be greater in the presence of specific molecular markers such as BRAF V-600E, CDKN2A, and H3F3A K27M.

Conclusions

The natural history, management, and prognosis of IPBT remain ambiguous. It seems that lesions suggestive of LGBT can initially be followed, since many of these lesions remain stable over time and MT is rare. However, controversy among centers concerning the ideal approach still exists. Further observational and prospective cohort studies, focusing on potential clinical and radiological characteristics or risk factors suggestive of high-grade tumors, tumor progress, or MT of IPBT, are needed.

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Title: Management of incidental brain tumors in children: a systematic review
Authors: Jehuda Soleman
Danil A. Kozyrev
Liat Ben-Sira
Shlomi Constantini
Jonathan Roth
Publication date: 01-08-2020
Publisher: Springer Berlin Heidelberg
Keywords: Glioma
Glioma
Brain Tumor
Glioma
Published in: Child's Nervous System / Issue 8/2020
Print ISSN: 0256-7040
Electronic ISSN: 1433-0350
DOI: https://doi.org/10.1007/s00381-020-04658-8

At a glance: The STEP trials

Springer Medicine

Management of incidental brain tumors in children: a systematic review

Abstract

Background

Methods

Results

Conclusions

At a glance: The STEP trials

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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