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01-07-2016 | Review Article

Clinicopathological differences between variants of the NAB2–STAT6 fusion gene in solitary fibrous tumors of the meninges and extra-central nervous system

Authors: Satoko Nakada, Hiroshi Minato, Takayuki Nojima

Published in: Brain Tumor Pathology | Issue 3/2016

Abstract

Investigations on the NAB2–STAT6 fusion gene in solitary fibrous tumors (SFTs) and hemangiopericytomas (HPCs) have increased since its discovery in 2013. Although several SFTs reported without NAB2–STAT6 fusion gene analysis, we reviewed 546 SFTs/HPCs with NAB2–STAT6 fusion gene analysis in this study and investigated differences between the gene variants. In total, 452 cases tested positive for the NAB2–STAT6 fusion gene, with more than 40 variants being detected. The most frequent of these were NAB2 exon 6-STAT6 exon 16/17/18 and NAB2 exon 4-STAT6 exon 2/3, with the former occurring most frequently in SFTs in meninges, soft tissues, and head and neck; the latter predominated in SFTs in the pleura and lung. There was no difference between the histology of SFTs and fusion gene variants. A follow-up analysis of SFTs showed that 51 of 202 cases had a recurrence, with 18 of 53 meningeal SFTs having a local recurrence and/or metastasis within 0–19 years. In meninges and soft tissue, SFTs with the NAB2 exon 6-STAT6 exon 16/17/18 tended to recur more frequently than SFTs with the NAB2 exon 4-STAT6 exon 2/3. Clinicopathological data, including yearly follow-ups, are required for meningeal SFTs/HPCs to define the correlation of variants of NAB2–STAT6 fusion gene.

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Title: Clinicopathological differences between variants of the NAB2–STAT6 fusion gene in solitary fibrous tumors of the meninges and extra-central nervous system
Authors: Satoko Nakada
Hiroshi Minato
Takayuki Nojima
Publication date: 01-07-2016
Publisher: Springer Japan
Published in: Brain Tumor Pathology / Issue 3/2016
Print ISSN: 1433-7398
Electronic ISSN: 1861-387X
DOI: https://doi.org/10.1007/s10014-016-0264-6

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Clinicopathological differences between variants of the NAB2–STAT6 fusion gene in solitary fibrous tumors of the meninges and extra-central nervous system

Abstract

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Abstract

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