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@ARTICLE{Tietze:293311,
author = {A. Tietze and B. Bison and J. Engelhardt and T. Fenouil and
D. Figarella-Branger and E. Goebell and J. Hakumäki and E.
Koscielniak and L. E. Ludlow and D. Meyronet and P. Nyman
and I. Øra and J. Pesola and T. Rauramaa and R. E.
Reddingius and D. Samuel and A. Sexton-Oates and A.
Vasiljevic and A. K. Wefers and J. Zamecnik and D. Jones and
M. K. Keck$^*$ and K. von Hoff},
collaboration = {E. S. f. P. Oncology},
othercontributors = {S. Avula and C. Faure-Conter and B. Bison and J. Gojo and
C. Haberler and J. T. Hayden and P. D. Johann and D.
Jones$^*$ and L. S. Korhonen and C. Kramm and M. Kranendonk
and M. Lequin and T. Perwein and A. Schouten-van Meeteren
and A. Tietze and T. von Kalle and B. von Zezschwitz and P.
Wesseling and M. Zapotocky and K. von Hoff},
title = {{CNS} {E}mbryonal {T}umor with {PLAGL} {A}mplification, a
{N}ew {T}umor {T}ype in {C}hildren and {A}dolescents:
{I}nsights from a {C}omprehensive {MRI} {A}nalysis.},
journal = {American journal of neuroradiology},
volume = {46},
number = {3},
issn = {0195-6108},
address = {Oak Brook, Ill.},
publisher = {Soc.},
reportid = {DKFZ-2024-01869},
pages = {536-543},
year = {2025},
note = {2025 Mar 4;46(3):536-543},
abstract = {CNS embryonal tumor with PLAGL1/PLAGL2 amplification (ET,
PLAGL) is a newly identified, highly malignant pediatric
tumor. Systematic MRI descriptions of ET, PLAGL are
currently lacking.MRI data from 19 treatment-naïve patients
with confirmed ET, PLAGL were analyzed. Evaluation focused
on anatomical involvement, tumor localization, MRI signal
characteristics, DWI behavior, and the presence of necrosis
and hemorrhage. Descriptive statistics (median,
interquartile range, percentage) were assessed.Ten patients
had PLAGL1 and nine PLAGL2 amplifications. The solid
components of the tumors were often multinodular with
heterogeneous enhancement (mild to intermediate in $47\%$
and intermediate to strong in $47\%$ of cases). Non-solid
components included cysts in $47\%$ and necrosis in $84\%$
of the cases. The tumors showed heterogeneous T2WI hyper-and
isointensity $(74\%),$ relatively little diffusion
restriction (ADC values < contralateral normal-appearing WM
in $36\%$ of cases with available DWI), and tendencies
towards hemorrhage/calcification $(42\%).$ No reliable
distinction was found between PLAGL1-and PLAGL2-amplified
tumors or compared to other embryonal CNS tumors.The study
contributes to understanding the imaging characteristics of
ET, PLAGL. It underscores the need for collaboration in
studying rare pediatric tumors and advocates for the use of
harmonized imaging protocols for better
characterization.ATRT= atypical teratoid/rhabdoid tumor;
ETMR= embryonal tumor with multilayered rosettes; ET, PLAGL=
CNS embryonal tumor with PLAGL amplification; EVD= external
ventricular drain; IQR: interquartile range; PLAGL1=
pleomorphic adenoma gene-like 1; PLAGL2= pleomorphic adenoma
gene-like 2; WHO= World Health Organization.},
cin = {B360},
ddc = {610},
cid = {I:(DE-He78)B360-20160331},
pnm = {312 - Funktionelle und strukturelle Genomforschung
(POF4-312)},
pid = {G:(DE-HGF)POF4-312},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:39271290},
doi = {10.3174/ajnr.A8496},
url = {https://inrepo02.dkfz.de/record/293311},
}