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Szathmari A, Beuriat PA, Vasiljevic A, Leblond P, Faure-Conter C, Claude L, Di Rocco F, Mottolese C. Results of the treatment of pineal tumors in children: the Lyon experience. Childs Nerv Syst 2023; 39:2317-2327. [PMID: 36242638 DOI: 10.1007/s00381-022-05649-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 08/12/2022] [Indexed: 12/01/2022]
Abstract
INTRODUCTION Pineal tumors are rare and their incidence is of 1% among all pediatric tumors of the central nervous system. Patient survival depends on the histology, the extension of the surgical removal, and the efficacy of the complementary treatment (chemotherapy and cranio-spinal irradiation), as well as the age of the patient. MATERIALS AND METHODS In this study, we analyzed 151 pediatric patients treated for pineal tumors from 1997 to 2020 in Lyon, France. All patients were recorded in the French Register of Pineal tumors, which has been centralized and maintained in Lyon since 2010. RESULTS Our analysis shows that benign tumors have an overall positive prognosis with total surgical removal. Concerning pineal parenchymal tumors, pinealoblastomas have a poor prognosis , especially in children less than three years old. A new pathological classification system allows for a better stratification of patient risk within different groups of patients with pineal tumors. It is also important to note that the identification of DICER 1 syndrome in families with pinealoblastomas warrant further medical investigation. Patients with Germ Cell Tumors have more favorable outcomes, with a global survival rate of 87 % and a pure germinoma survival rate of almost 97%. When analyzing the prognosis of pineal gland gliomas, otherwise known as tectal plate gliomas, pilocytic astrocytomas had a promising prognosis. Otherwise, prognosis of other tectal plate gliomas are related to the grade of malignancy and the efficacy of complementary treatment. Lastly, papillary tumors need a complete removal for the best chance of survival, and Atypical teratoid/ rabdoid tumors (AT/TR) still have a bad prognosis, regardless of surgical resection. CONCLUSIONS Our results show that, with regards to pediatric pineal region tumors, there are still areas in prognostic indicators that need to be improved. Similarly, these pathologies need to be treated via a multidisciplinary approach to improve a patient's survival rate and their quality of life.
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Affiliation(s)
- Alexandru Szathmari
- Department of Pediatric Neurosurgery, Hôpital Femme Mère Enfant, 32 Avenue du Doyen Jean Lépine, 69500, Hospices Civils de LyonBron, France
| | - Pierre-Aurélien Beuriat
- Department of Pediatric Neurosurgery, Hôpital Femme Mère Enfant, 32 Avenue du Doyen Jean Lépine, 69500, Hospices Civils de LyonBron, France
- Université Claude Bernard, Lyon 1, 69100, Villeurbanne, France
| | - Alexandre Vasiljevic
- Department of Pathology and Neuropathology, GHE, Hospices Civils de Lyon, 69500, Bron, France
| | - Pierre Leblond
- Department of Pediatric Hematology and Oncology, Institut d'hématologie et d'oncologie Pédiatrique, 69008, Lyon, France
| | - Cécile Faure-Conter
- Department of Pediatric Hematology and Oncology, Institut d'hématologie et d'oncologie Pédiatrique, 69008, Lyon, France
| | - Line Claude
- Department of Radiotherapy, Centre Léon Bérard, 69008, Lyon, France
| | - Federico Di Rocco
- Department of Pediatric Neurosurgery, Hôpital Femme Mère Enfant, 32 Avenue du Doyen Jean Lépine, 69500, Hospices Civils de LyonBron, France
- Université Claude Bernard, Lyon 1, 69100, Villeurbanne, France
| | - Carmine Mottolese
- Department of Pediatric Neurosurgery, Hôpital Femme Mère Enfant, 32 Avenue du Doyen Jean Lépine, 69500, Hospices Civils de LyonBron, France.
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Benesch M, Perwein T, Apfaltrer G, Langer T, Neumann A, Brecht IB, Schuhmann MU, Cario H, Frühwald MC, Vollert K, van Buiren M, Deng MY, Seitz A, Haberler C, Mynarek M, Kramm C, Sahm F, Robe PA, Dankbaar JW, Hoff KV, Warmuth-Metz M, Bison B. MR Imaging and Clinical Characteristics of Diffuse Glioneuronal Tumor with Oligodendroglioma-like Features and Nuclear Clusters. AJNR Am J Neuroradiol 2022; 43:1523-1529. [PMID: 36137663 PMCID: PMC9575520 DOI: 10.3174/ajnr.a7647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 06/28/2022] [Indexed: 01/26/2023]
Abstract
BACKGROUND AND PURPOSE Diffuse glioneuronal tumor with oligodendroglioma-like features and nuclear clusters (DGONC) is a new, molecularly defined glioneuronal CNS tumor type. The objective of the present study was to describe MR imaging and clinical characteristics of patients with DGONC. MATERIALS AND METHODS Preoperative MR images of 9 patients with DGONC (median age at diagnosis, 9.9 years; range, 4.2-21.8 years) were reviewed. RESULTS All tumors were located superficially in the frontal/temporal lobes and sharply delineated, displaying little mass effect. Near the circle of Willis, the tumors encompassed the arteries. All except one demonstrated characteristics of low-to-intermediate aggressiveness with high-to-intermediate T2WI and ADC signals and bone remodeling. Most tumors (n = 7) showed a homogeneous ground-glass aspect on T2-weighted and FLAIR images. On the basis of the original histopathologic diagnosis, 6 patients received postsurgical chemo-/radiotherapy, 2 were irradiated after surgery, and 1 patient underwent tumor resection only. At a median follow-up of 61 months (range, 10-154 months), 6 patients were alive in a first complete remission and 2 with stable disease 10 and 21 months after diagnosis. The only patient with progressive disease was lost to follow-up. Five-year overall and event-free survival was 100% and 86±13%, respectively. CONCLUSIONS This case series presents radiomorphologic characteristics highly predictive of DGONC that contrast with the typical aspects of the original histopathologic diagnoses. This presentation underlines the definition of DGONC as a separate entity, from a clinical perspective. Complete resection may be favorable for long-term disease control in patients with DGONC. The efficacy of nonsurgical treatment modalities should be evaluated in larger series.
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Affiliation(s)
- M Benesch
- From the Division of Pediatric Hematology and Oncology (M.B., T.P.), Department of Pediatrics and Adolescent Medicine
| | - T Perwein
- From the Division of Pediatric Hematology and Oncology (M.B., T.P.), Department of Pediatrics and Adolescent Medicine
| | - G Apfaltrer
- Division of Pediatric Radiology (G.A.), Department of Radiology, Medical University Graz, Graz, Austria
| | - T Langer
- Departments of Pediatrics (T.L.)
| | - A Neumann
- Neuroradiology (A.N.), University Medical Center Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - I B Brecht
- Pediatric Hematology and Oncology (I.B.B.), Children's Hospital
| | - M U Schuhmann
- Division of Pediatric Neurosurgery (M.U.S.), Department of Neurosurgery, Eberhard-Karls University Tübingen, Tübingen, Germany
| | - H Cario
- Department of Pediatrics and Adolescent Medicine (H.C.), Ulm University Medical Center, Ulm, Germany
| | | | - K Vollert
- Pediatric and Adolescent Medicine and Departments of Diagnostic and Interventional Radiology and Neuroradiology (K.V., B.B.), University Medical Center Augsburg, Augsburg, Germany
| | - M van Buiren
- Department of Pediatric Hematology and Oncology (M.v.B.), Center for Pediatrics, Medical Center-University of Freiburg, Freiburg, Germany
| | - M Y Deng
- Hopp Children's Cancer Center Heidelberg (M.Y.D., F.S.)
| | - A Seitz
- German Cancer Research Center and Department of Neuroradiology (A.S.)
| | - C Haberler
- Division of Neuropathology and Neurochemistry (C.H.), Department of Neurology, Medical University of Vienna, Vienna, Austria
| | - M Mynarek
- Department of Pediatric Hematology and Oncology (M.M.)
- Mildred Scheel Cancer Career Center (M.M.), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - C Kramm
- Division of Pediatric Hematology and Oncology (C.K.), University Medical Center Göttingen, Göttingen, Germany
| | - F Sahm
- Hopp Children's Cancer Center Heidelberg (M.Y.D., F.S.)
- Department of Neuropathology (F.S.), Institute of Pathology
- Clinical Cooperation Unit Neuropathology (F.S.), German Cancer Consortium, German Cancer Research Center, Heidelberg University Hospital, Heidelberg, Germany
| | - P A Robe
- Department of Neurology and Neurosurgery (P.A.R.)
| | - J W Dankbaar
- Department of Radiology (J.W.D.), University Medical Center Utrecht, Utrecht, the Netherlands
| | - K V Hoff
- Department of Pediatric Oncology and Hematology (K.V.H.), Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - M Warmuth-Metz
- Institute of Diagnostic and Interventional Neuroradiology (M.W.-M.), University Hospital Würzburg, Würzburg, Germany
| | - B Bison
- Pediatric and Adolescent Medicine and Departments of Diagnostic and Interventional Radiology and Neuroradiology (K.V., B.B.), University Medical Center Augsburg, Augsburg, Germany
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MR Imaging of Pediatric Brain Tumors. Diagnostics (Basel) 2022; 12:diagnostics12040961. [PMID: 35454009 PMCID: PMC9029699 DOI: 10.3390/diagnostics12040961] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/02/2022] [Accepted: 04/05/2022] [Indexed: 02/04/2023] Open
Abstract
Primary brain tumors are the most common solid neoplasms in children and a leading cause of mortality in this population. MRI plays a central role in the diagnosis, characterization, treatment planning, and disease surveillance of intracranial tumors. The purpose of this review is to provide an overview of imaging methodology, including conventional and advanced MRI techniques, and illustrate the MRI appearances of common pediatric brain tumors.
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Zhang M, Tam L, Wright J, Mohammadzadeh M, Han M, Chen E, Wagner M, Nemalka J, Lai H, Eghbal A, Ho CY, Lober RM, Cheshier SH, Vitanza NA, Grant GA, Prolo LM, Yeom KW, Jaju A. Radiomics Can Distinguish Pediatric Supratentorial Embryonal Tumors, High-Grade Gliomas, and Ependymomas. AJNR Am J Neuroradiol 2022; 43:603-610. [PMID: 35361575 PMCID: PMC8993189 DOI: 10.3174/ajnr.a7481] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 01/25/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Pediatric supratentorial tumors such as embryonal tumors, high-grade gliomas, and ependymomas are difficult to distinguish by histopathology and imaging because of overlapping features. We applied machine learning to uncover MR imaging-based radiomics phenotypes that can differentiate these tumor types. MATERIALS AND METHODS Our retrospective cohort of 231 patients from 7 participating institutions had 50 embryonal tumors, 127 high-grade gliomas, and 54 ependymomas. For each tumor volume, we extracted 900 Image Biomarker Standardization Initiative-based PyRadiomics features from T2-weighted and gadolinium-enhanced T1-weighted images. A reduced feature set was obtained by sparse regression analysis and was used as input for 6 candidate classifier models. Training and test sets were randomly allocated from the total cohort in a 75:25 ratio. RESULTS The final classifier model for embryonal tumor-versus-high-grade gliomas identified 23 features with an area under the curve of 0.98; the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were 0.85, 0.91, 0.79, 0.94, and 0.89, respectively. The classifier for embryonal tumor-versus-ependymomas identified 4 features with an area under the curve of 0.82; the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were 0.93, 0.69, 0.76, 0.90, and 0.81, respectively. The classifier for high-grade gliomas-versus-ependymomas identified 35 features with an area under the curve of 0.96; the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were 0.82, 0.94, 0.82, 0.94, and 0.91, respectively. CONCLUSIONS In this multi-institutional study, we identified distinct radiomic phenotypes that distinguish pediatric supratentorial tumors, high-grade gliomas, and ependymomas with high accuracy. Incorporation of this technique in diagnostic algorithms can improve diagnosis, risk stratification, and treatment planning.
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Affiliation(s)
- M Zhang
- From the Departments of Neurosurgery (M.Z.)
| | - L Tam
- Stanford University School of Medicine (L.T.), Stanford, California
| | - J Wright
- Department of Radiology (J.W.).,Department of Radiology (J.W.), Harborview Medical Center, Seattle, Washington
| | - M Mohammadzadeh
- Department of Radiology (M.M.), Tehran University of Medical Sciences, Tehran, Iran
| | - M Han
- Department of Pediatrics (M.H.), Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, Pennsylvania
| | - E Chen
- Departments of Clinical Radiology & Imaging Sciences (E.C., C.Y.H.), Riley Children's Hospital, Indiana University, Indianapolis, Indiana
| | - M Wagner
- Department of Diagnostic Imaging (M.W.), The Hospital for Sick Children, Ontario, Canada
| | - J Nemalka
- Division of Pediatric Neurosurgery (J.N., S.H.C.), Department of Neurosurgery, Huntsman Cancer Institute, Intermountain Healthcare Primary Children's Hospital, University of Utah School of Medicine, Salt Lake City, Utah
| | - H Lai
- Department of Radiology (H.L., A.E.), CHOC Children's Hospital of Orange County California, University of California, Irvine, California
| | - A Eghbal
- Department of Radiology (H.L., A.E.), CHOC Children's Hospital of Orange County California, University of California, Irvine, California
| | - C Y Ho
- Departments of Clinical Radiology & Imaging Sciences (E.C., C.Y.H.), Riley Children's Hospital, Indiana University, Indianapolis, Indiana
| | - R M Lober
- Division of Neurosurgery (R.M.L.), Dayton Children's Hospital, Dayton, Ohio; Department of Pediatrics, Wright State University Boonshoft School of Medicine, Dayton, Ohio
| | - S H Cheshier
- Division of Pediatric Neurosurgery (J.N., S.H.C.), Department of Neurosurgery, Huntsman Cancer Institute, Intermountain Healthcare Primary Children's Hospital, University of Utah School of Medicine, Salt Lake City, Utah
| | - N A Vitanza
- Division of Pediatric Hematology/Oncology (N.A.V.), Department of Pediatrics, Seattle Children's Hospital, Seattle, Washington
| | - G A Grant
- Neurosurgery (G.A.G., L.M.P.), Lucile Packard Children's Hospital, Stanford University, Palo Alto, California
| | - L M Prolo
- Neurosurgery (G.A.G., L.M.P.), Lucile Packard Children's Hospital, Stanford University, Palo Alto, California
| | - K W Yeom
- Departments of Radiology (K.W.Y.)
| | - A Jaju
- Department of Medical Imaging (A.J.), Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois
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Rong T, Zou W, Qiu X, Cui W, Zhang D, Wu B, Kang Z, Li W, Liu B. A Rare Manifestation of a Presumed Non-Osteophilic Brain Neoplasm: Extensive Axial Skeletal Metastases From Glioblastoma With Primitive Neuronal Components. Front Oncol 2021; 11:760697. [PMID: 34796114 PMCID: PMC8593252 DOI: 10.3389/fonc.2021.760697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 10/04/2021] [Indexed: 11/13/2022] Open
Abstract
Background Glioblastoma multiforme (GBM) is the most common malignant tumor of the central nervous system. GBM with primitive neuronal component (GBM-PNC) is an aggressive variant identified in 0.5% of GBMs. Extracranial metastasis from GBM-PNC is a rare and challenging situation. Methods A special case of early-onset GBM with systemic bone metastasis was enrolled. Clinical data, including patient characteristics, disease course, and serial radiological images were retrieved and analyzed. Tumor tissues were obtained by surgical resections and were made into formalin-fixed paraffin-embedded sections. Histopathological examinations and genetic testing were performed for both the primary and metastatic tumor specimens. Results A 20-year-old man suffered from GBM with acute intratumoral hemorrhage of the left temporal lobe. He was treated by gross total resection and chemoradiotherapy following the Stupp protocol. Seven months later, he returned with a five-week history of progressive neck pain and unsteady gait. The radiographic examinations identified vertebral collapse at C4 and C6. Similar osteolytic lesions were also observed at the thoracolumbar spine, pelvic, and left femur. Anterior spondylectomy of C4 and C6 was performed. The resected vertebral bodies were infiltrated with greyish, soft, and ill-defined tumor tissue. One month later, he developed mechanical low-back pain and paraplegia caused by thoracolumbar metastases. Another spine surgery was performed, including T10 total en-bloc spondylectomy, T7-9, L2-3, and L5-S1 laminectomy. After the operation, the patient’s neurological function and spinal stability remained stable. However, he finally succumbed to the rapidly increased tumor burden and died 15 months from onset because of cachexia and multiple organ failure. In addition to typical GBM morphology, the histological examinations identified monomorphic small-round cells with positive immunohistochemical staining of synaptophysin and CD99, indicating the coexistence of PNC. The next-generation sequencing detected pathogenic mutations in TP53 and DNMT3A. Based on above findings, a confirmed diagnosis of systemic metastases from GBM-PNC (IDH-wild type, WHO grade IV) was made. Conclusions The present case highlights the occurrence and severity of extensive axial skeletal metastases from GBM-PNC. This rare variant of GBM requires aggressive multimodal treatment including surgery and chemoradiotherapy targeting PNC. The pathological screening of PNC is recommended in patients with early-onset GBM and intratumoral hemorrhage. Surgery for spinal metastasis is appropriate in patients with chemoradioresistance and relatively good general status, with the objectives of restoring spinal stability and relieving spinal cord compression.
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Affiliation(s)
- Tianhua Rong
- Department of Orthopaedic Surgery, Spine Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China.,Basic and Translational Medicine Center, China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Wanjing Zou
- Department of Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Xiaoguang Qiu
- Department of Radiation Oncology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Wei Cui
- Department of Orthopaedic Surgery, Spine Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China
| | - Duo Zhang
- Department of Orthopaedic Surgery, Spine Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China
| | - Bingxuan Wu
- Department of Orthopaedic Surgery, Spine Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China.,Basic and Translational Medicine Center, China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Zhuang Kang
- Department of Neuro-Oncology, Cancer Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Wenbin Li
- Department of Neuro-Oncology, Cancer Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Baoge Liu
- Department of Orthopaedic Surgery, Spine Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China.,Basic and Translational Medicine Center, China National Clinical Research Center for Neurological Diseases, Beijing, China
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Lambo S, von Hoff K, Korshunov A, Pfister SM, Kool M. ETMR: a tumor entity in its infancy. Acta Neuropathol 2020; 140:249-266. [PMID: 32601913 PMCID: PMC7423804 DOI: 10.1007/s00401-020-02182-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/04/2020] [Accepted: 06/18/2020] [Indexed: 12/18/2022]
Abstract
Embryonal tumor with Multilayered Rosettes (ETMR) is a relatively rare but typically deadly type of brain tumor that occurs mostly in infants. Since the discovery of the characteristic chromosome 19 miRNA cluster (C19MC) amplification a decade ago, the methods for diagnosing this entity have improved and many new insights in the molecular landscape of ETMRs have been acquired. All ETMRs, despite their highly heterogeneous histology, are characterized by specific high expression of the RNA-binding protein LIN28A, which is, therefore, often used as a diagnostic marker for these tumors. ETMRs have few recurrent genetic aberrations, mainly affecting the miRNA pathway and including amplification of C19MC (embryonal tumor with multilayered rosettes, C19MC-altered) and mutually exclusive biallelic DICER1 mutations of which the first hit is typically inherited through the germline (embryonal tumor with multilayered rosettes, DICER1-altered). Identification of downstream pathways affected by the deregulated miRNA machinery has led to several proposed potential therapeutical vulnerabilities including targeting the WNT, SHH, or mTOR pathways, MYCN or chromosomal instability. However, despite those findings, treatment outcomes have only marginally improved, since the initial description of this tumor entity. Many patients do not survive longer than a year after diagnosis and the 5-year overall survival rate is still lower than 30%. Thus, there is an urgent need to translate the new insights in ETMR biology into more effective treatments. Here, we present an overview of clinical and molecular characteristics of ETMRs and the current progress on potential targeted therapies.
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Affiliation(s)
- Sander Lambo
- Hopp Children's Cancer Center (KiTZ), Heidelberg, Germany
- Division of Pediatric Neurooncology, German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Katja von Hoff
- Department of Pediatric Oncology/Hematology, Charité University Medicine, Berlin, Germany
| | - Andrey Korshunov
- Department of Neuropathology, Heidelberg University Hospital, Heidelberg, Germany
- Clinical Cooperation Unit Neuropathology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stefan M Pfister
- Hopp Children's Cancer Center (KiTZ), Heidelberg, Germany
- Division of Pediatric Neurooncology, German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), Heidelberg, Germany
- Department of Pediatric Oncology, Hematology and Immunology, University Hospital Heidelberg, Heidelberg, Germany
| | - Marcel Kool
- Hopp Children's Cancer Center (KiTZ), Heidelberg, Germany.
- Division of Pediatric Neurooncology, German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), Heidelberg, Germany.
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.
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