Case report: A unique presentation of a high-grade neuroepithelial tumor with EWSR1::PATZ1 fusion with diagnostic, molecular, and therapeutic insights

BackgroundEWSR1::PATZ1 fusion tumors are exceedingly rare in the central nervous system with only 14 prior cases documented. PATZ1 fusion neuroepithelial tumors are beginning to be recognized as a distinct molecular class of neoplasms that most often occur in children and young adults. These tumors...

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Main Authors: Andre Ene, Jing Di, Janna H. Neltner, Thomas Pittman, Susanne M. Arnold, Jill M. Kolesar, John L. Villano, Sara E. Bachert, Derek B. Allison
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-01-01
Series:Frontiers in Oncology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fonc.2023.1094274/full
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author Andre Ene
Jing Di
Janna H. Neltner
Thomas Pittman
Susanne M. Arnold
Susanne M. Arnold
Jill M. Kolesar
Jill M. Kolesar
John L. Villano
John L. Villano
John L. Villano
Sara E. Bachert
Sara E. Bachert
Derek B. Allison
Derek B. Allison
author_facet Andre Ene
Jing Di
Janna H. Neltner
Thomas Pittman
Susanne M. Arnold
Susanne M. Arnold
Jill M. Kolesar
Jill M. Kolesar
John L. Villano
John L. Villano
John L. Villano
Sara E. Bachert
Sara E. Bachert
Derek B. Allison
Derek B. Allison
author_sort Andre Ene
collection DOAJ
description BackgroundEWSR1::PATZ1 fusion tumors are exceedingly rare in the central nervous system with only 14 prior cases documented. PATZ1 fusion neuroepithelial tumors are beginning to be recognized as a distinct molecular class of neoplasms that most often occur in children and young adults. These tumors are polyphenotypic, show diverse morphologic features, may be low- or high-grade, and tend to have an intermediate prognosis.Case presentationHerein, we present an unusual case of a high-grade neuroepithelial tumor in a young man with an EWSR1::PATZ1 fusion. This case is unique because the tumor appears to have undergone high-grade transformation from a persistent low-grade glioma, which has yet to be reported. Furthermore, this case is the first to document concurrent RB1 loss, SMAD4 loss, and TP53 inactivation in this tumor type, which correlates with high-grade transformation. Fortunately, this patient is alive 2.5 years after treatment and 18.5 years after initial presentation, which provides a unique window into how these tumors clinically behave over a long follow-up period. Finally, we discuss the altered molecular pathways that are a result of the EWSR1::PATZ1 fusion and discuss potential therapeutic targets.ConclusionAwareness of the emerging entity of PATZ1 fusion neuroepithelial tumors is important not only for accurate diagnostic and prognostic purposes but also for predicting response to therapy.
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spelling doaj.art-283b85944cbb434a9576dffac41b0fb12023-01-31T05:35:58ZengFrontiers Media S.A.Frontiers in Oncology2234-943X2023-01-011310.3389/fonc.2023.10942741094274Case report: A unique presentation of a high-grade neuroepithelial tumor with EWSR1::PATZ1 fusion with diagnostic, molecular, and therapeutic insightsAndre Ene0Jing Di1Janna H. Neltner2Thomas Pittman3Susanne M. Arnold4Susanne M. Arnold5Jill M. Kolesar6Jill M. Kolesar7John L. Villano8John L. Villano9John L. Villano10Sara E. Bachert11Sara E. Bachert12Derek B. Allison13Derek B. Allison14Department of Pathology and Laboratory Medicine, University of Kentucky, Lexington, KY, United StatesDepartment of Pathology and Laboratory Medicine, University of Kentucky, Lexington, KY, United StatesDepartment of Pathology and Laboratory Medicine, University of Kentucky, Lexington, KY, United StatesDepartment of Neurosurgery, University of Kentucky, Lexington, KY, United StatesDepartment of Medicine, Division of Medical Oncology, University of Kentucky, Lexington, KY, United StatesMarkey Cancer Center, University of Kentucky, Lexington, KY, United StatesMarkey Cancer Center, University of Kentucky, Lexington, KY, United StatesDepartment of Pharmacy Practice and Science, University of Kentucky, Lexington, KY, United StatesDepartment of Neurosurgery, University of Kentucky, Lexington, KY, United StatesDepartment of Medicine, Division of Medical Oncology, University of Kentucky, Lexington, KY, United StatesMarkey Cancer Center, University of Kentucky, Lexington, KY, United StatesDepartment of Pathology and Laboratory Medicine, University of Kentucky, Lexington, KY, United StatesMarkey Cancer Center, University of Kentucky, Lexington, KY, United StatesDepartment of Pathology and Laboratory Medicine, University of Kentucky, Lexington, KY, United StatesMarkey Cancer Center, University of Kentucky, Lexington, KY, United StatesBackgroundEWSR1::PATZ1 fusion tumors are exceedingly rare in the central nervous system with only 14 prior cases documented. PATZ1 fusion neuroepithelial tumors are beginning to be recognized as a distinct molecular class of neoplasms that most often occur in children and young adults. These tumors are polyphenotypic, show diverse morphologic features, may be low- or high-grade, and tend to have an intermediate prognosis.Case presentationHerein, we present an unusual case of a high-grade neuroepithelial tumor in a young man with an EWSR1::PATZ1 fusion. This case is unique because the tumor appears to have undergone high-grade transformation from a persistent low-grade glioma, which has yet to be reported. Furthermore, this case is the first to document concurrent RB1 loss, SMAD4 loss, and TP53 inactivation in this tumor type, which correlates with high-grade transformation. Fortunately, this patient is alive 2.5 years after treatment and 18.5 years after initial presentation, which provides a unique window into how these tumors clinically behave over a long follow-up period. Finally, we discuss the altered molecular pathways that are a result of the EWSR1::PATZ1 fusion and discuss potential therapeutic targets.ConclusionAwareness of the emerging entity of PATZ1 fusion neuroepithelial tumors is important not only for accurate diagnostic and prognostic purposes but also for predicting response to therapy.https://www.frontiersin.org/articles/10.3389/fonc.2023.1094274/fullbrain tumorneurooncologypediatricneuroepithelialPATZ1EWSR1
spellingShingle Andre Ene
Jing Di
Janna H. Neltner
Thomas Pittman
Susanne M. Arnold
Susanne M. Arnold
Jill M. Kolesar
Jill M. Kolesar
John L. Villano
John L. Villano
John L. Villano
Sara E. Bachert
Sara E. Bachert
Derek B. Allison
Derek B. Allison
Case report: A unique presentation of a high-grade neuroepithelial tumor with EWSR1::PATZ1 fusion with diagnostic, molecular, and therapeutic insights
Frontiers in Oncology
brain tumor
neurooncology
pediatric
neuroepithelial
PATZ1
EWSR1
title Case report: A unique presentation of a high-grade neuroepithelial tumor with EWSR1::PATZ1 fusion with diagnostic, molecular, and therapeutic insights
title_full Case report: A unique presentation of a high-grade neuroepithelial tumor with EWSR1::PATZ1 fusion with diagnostic, molecular, and therapeutic insights
title_fullStr Case report: A unique presentation of a high-grade neuroepithelial tumor with EWSR1::PATZ1 fusion with diagnostic, molecular, and therapeutic insights
title_full_unstemmed Case report: A unique presentation of a high-grade neuroepithelial tumor with EWSR1::PATZ1 fusion with diagnostic, molecular, and therapeutic insights
title_short Case report: A unique presentation of a high-grade neuroepithelial tumor with EWSR1::PATZ1 fusion with diagnostic, molecular, and therapeutic insights
title_sort case report a unique presentation of a high grade neuroepithelial tumor with ewsr1 patz1 fusion with diagnostic molecular and therapeutic insights
topic brain tumor
neurooncology
pediatric
neuroepithelial
PATZ1
EWSR1
url https://www.frontiersin.org/articles/10.3389/fonc.2023.1094274/full
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