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037 _ _ |a DKFZ-2020-02349
041 _ _ |a eng
082 _ _ |a 610
100 1 _ |a Massimino, Maura
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245 _ _ |a The AIEOP 2nd series of children and adolescents intracranial Ependymoma. An integrated molecular and clinical characterization with a long-term follow-up.
260 _ _ |a Oxford
|c 2021
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500 _ _ |a 2021 May 5;23(5):848-857
520 _ _ |a A prospective 2002-2014 study stratified 160 patients by resection extent and histological grade, reporting results in 2016. We reanalyzed the series after a median 119 months, adding retrospectively patients' molecular features.Follow-up of all patients was updated. DNA copy-number analysis and gene-fusion detection could be completed for 94/160 patients, methylation classification for 68.PFS and OS at five/ten years were 66/58%, and 80/73%. Ten patients had late relapses (range 66-126 months), surviving after relapse no longer than those relapsing earlier (0-5 years). On multivariable analysis a better PFS was associated with grade 2 tumor and complete surgery at diagnosis and/or at RT; female sex and complete resection showed a positive association with OS. Posterior fossa(PF) tumors scoring ≥0.80 on DNA methylation analysis were classified as PFA (41) and PFB (8). PFB patients had better PFS and OS. Eighteen/32 supratentorial(ST) tumors were classified as RELA, and 3 as other molecular entities (anaplastic PXA, LGG MYB, HGNET). RELA had no prognostic impact. Patients with 1q gain or CDKN2A loss had worse outcomes, included significantly more patients >3 years old (p = 0.050) and cases of dissemination at relapse (p = 0.007).Previously-described prognostic factors were confirmed at 10-year follow-up. Late relapses occurred in 6.2% of patients. Specific molecular features may affect outcome: PFB patients had a very good prognosis; 1q gain and CDKN2A loss were associated with dissemination. To draw reliable conclusions, modern ependymoma trials need to combine diagnostics with molecular risk stratification and long-term follow-up.
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700 1 _ |a Barretta, Francesco
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700 1 _ |a Modena, Piergiorgio
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700 1 _ |a Witt, Hendrik
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700 1 _ |a Minasi, Simone
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700 1 _ |a Pfister, Stefan M
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700 1 _ |a Antonelli, Manila
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700 1 _ |a Gandola, Lorenza
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700 1 _ |a Garrè, Maria Luisa
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700 1 _ |a Bertin, Daniele
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700 1 _ |a Mastronuzzi, Angela
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700 1 _ |a Mascarin, Maurizio
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700 1 _ |a Quaglietta, Lucia
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700 1 _ |a Viscardi, Elisabetta
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700 1 _ |a Sardi, Iacopo
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700 1 _ |a Ruggiero, Antonio
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700 1 _ |a Pollo, Bianca
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700 1 _ |a Buccoliero, Annamaria
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700 1 _ |a Boschetti, Luna
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700 1 _ |a Schiavello, Elisabetta
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700 1 _ |a Chiapparini, Luisa
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700 1 _ |a Erbetta, Alessandra
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700 1 _ |a Morra, Isabella
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700 1 _ |a Gessi, Marco
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700 1 _ |a Donofrio, Vittoria
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700 1 _ |a Patriarca, Carlo
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700 1 _ |a Giangaspero, Felice
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700 1 _ |a Johann, Pascal
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700 1 _ |a Buttarelli, Francesca Romana
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