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Foo JC, Yaman Bajin I, Marushchak O, McKeown T, Bouffet E, Tsang DS, Laperriere N, Dirks P, Drake J, Ertl-Wagner B, Bartels U. Time to dismiss boost? Outcomes of children with localized and metastatic germinoma. J Neurooncol 2023; 162:443-448. [PMID: 37039951 DOI: 10.1007/s11060-023-04307-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 04/01/2023] [Indexed: 04/12/2023]
Abstract
PURPOSE To determine long-term outcomes of a cohort of children with germinoma treated with chemotherapy and radiation therapy without primary tumor boost even in the absence of complete response to chemotherapy METHODS: This retrospective study analyzed the outcome of patients with germinoma consecutively diagnosed and treated at a tertiary care center from January 2000 to December 2021. MRIs were reviewed by two radiologists, blinded to patient data. Tumor location at diagnosis, tumor response to chemotherapy and at completion of radiation therapy and site of relapse were assessed. Tumor response was assessed radiologically by determining the tumor size and response on diffusion-weighted imaging, in addition to biochemical, cytological parameters and neurological status. RESULTS Of 46 pediatric germinoma patients, 29 children (14 male; median age 12.8 years) received no primary tumor boost. Median follow-up was 63 months (range 9-187 months). Twenty-five children had localized disease and tumor location was suprasellar (n = 11), pineal (n = 10), bifocal (n = 3) and basal ganglia (n = 1) while 4 children had metastatic disease at presentation. All patients completed multi-agent chemotherapy followed by either ventricular irradiation (VI) (23.4 Gy) (n = 23), whole brain (WBI) (23.4 Gy) (n = 5) or craniospinal radiation (CSI) (23.4 Gy) (n = 1). Two children, who had localized disease at presentation and received VI after chemotherapy, relapsed 9 months and 32 months after completion of treatment respectively. No patient had a local relapse. Location of relapse was distant, outside (n = 1) and out- and inside (n = 1) the irradiation field. Five-year progression free survival (PFS) was 91% and overall survival (OS) was 100%. CONCLUSIONS In this case series, excellent 5-year PFS and OS rates were achieved with chemotherapy followed by radiation therapy of 23.4 Gy delivered without primary tumor boost. No local relapse was observed despite omitting primary tumor boost in patients with localized and metastatic germinoma.
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Affiliation(s)
- Jen Chun Foo
- Division of Paediatric Haematology-Oncology, Department of Paediatrics, Hospital for Sick Children, 555 University Ave, Toronto, ON, M5G 1X8, Canada
| | - Inci Yaman Bajin
- Division of Paediatric Haematology-Oncology, Department of Paediatrics, Hospital for Sick Children, 555 University Ave, Toronto, ON, M5G 1X8, Canada
| | - Oksana Marushchak
- Department of Diagnostic Imaging, Hospital for Sick Children, Toronto, Canada
| | - Tara McKeown
- Division of Paediatric Haematology-Oncology, Department of Paediatrics, Hospital for Sick Children, 555 University Ave, Toronto, ON, M5G 1X8, Canada
| | - Eric Bouffet
- Division of Paediatric Haematology-Oncology, Department of Paediatrics, Hospital for Sick Children, 555 University Ave, Toronto, ON, M5G 1X8, Canada
| | - Derek S Tsang
- Department of Radiation Oncology, Princess Margaret Cancer Centre, Toronto, Canada
| | - Norman Laperriere
- Department of Radiation Oncology, Princess Margaret Cancer Centre, Toronto, Canada
| | - Peter Dirks
- Division of Neuro-Surgery, Department of Surgery, Hospital for Sick Children, Toronto, Canada
| | - James Drake
- Division of Neuro-Surgery, Department of Surgery, Hospital for Sick Children, Toronto, Canada
| | - Birgit Ertl-Wagner
- Department of Diagnostic Imaging, Hospital for Sick Children, Toronto, Canada
- Department of Medical Imaging, University of Toronto, Toronto, Canada
| | - Ute Bartels
- Division of Paediatric Haematology-Oncology, Department of Paediatrics, Hospital for Sick Children, 555 University Ave, Toronto, ON, M5G 1X8, Canada.
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Yeo KK, Nagabushan S, Dhall G, Abdelbaki MS. Primary central nervous system germ cell tumors in children and young adults: A review of controversies in diagnostic and treatment approach. Neoplasia 2022; 36:100860. [PMID: 36521378 PMCID: PMC9772847 DOI: 10.1016/j.neo.2022.100860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 11/18/2022] [Accepted: 11/28/2022] [Indexed: 12/15/2022] Open
Abstract
Primary central nervous system (CNS) germ cell tumors (GCT) are a rare heterogenous group of cancers, arising most commonly in the second decade of life. Through several clinical trials conducted around the world by various groups, the treatment approach for CNS GCT has advanced substantially with generally improved overall outcomes. In recent years, the goal of clinical trials has been focused on reduction of the radiotherapy burden and minimization of long-term toxicity. This review summarizes the current diagnostic and treatment regimens for CNS GCT, examines the controversies associated with these approaches, gaps in contemporary knowledge, and underscores the challenges we face. We also explore future directions in the management of CNS GCT with the ultimate overall aim of preserving curative outcomes, identifying novel biomarkers, and mitigating neurocognitive, endocrine, and psychological toxicity through prospective clinical studies.
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Affiliation(s)
- Kee Kiat Yeo
- Dana-Farber / Boston Children's Cancer and Blood Disorder Center, USA,Department of Pediatrics, Harvard Medical School, Boston, USA
| | - Sumanth Nagabushan
- Kids Cancer Centre, Sydney Children's Hospital, Randwick, New South Wales, Australia,University of New South Wales, Randwick, New South Wales, Australia
| | - Girish Dhall
- The Alabama Center for Childhood Cancer and Blood Disorders at Children's of Alabama, Birmingham, USA,University of Alabama, Birmingham, USA,Corresponding author at: The Alabama Center for Childhood Cancer and Blood Disorders at Children's of Alabama, 1600 7th Avenue S, Lowder 512, Birmingham, AL 35233, USA.
| | - Mohamed S. Abdelbaki
- The Division of Hematology and Oncology, St. Louis Children's Hospital, Washington University, School of Medicine in St. Louis, Washington University, St. Louis, Missouri, USA,Co-corresponding author at: Washington University School of Medicine in St. Louis, 660 South Euclid Avenue – Campus Box 8116, St. Louis, MO 63110, USA.
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