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@ARTICLE{Ellison:156718,
author = {D. W. Ellison and K. D. Aldape and D. Capper$^*$ and M.
Fouladi and M. R. Gilbert and R. J. Gilbertson and C.
Hawkins and T. Merchant and K. Pajtler$^*$ and S. Venneti
and D. N. Louis},
title = {c{IMPACT}-{NOW} update 7: advancing the molecular
classification of ependymal tumors.},
journal = {Brain pathology},
volume = {30},
number = {5},
issn = {1750-3639},
address = {Oxford},
publisher = {Wiley-Blackwell},
reportid = {DKFZ-2020-01056},
pages = {863-866},
year = {2020},
note = {2020 Sep;30(5):863-866},
abstract = {Advances in our understanding of the biological basis and
molecular characteristics of ependymal tumors since the
latest iteration of the World Health Organization (WHO)
classification of CNS tumors (2016) have prompted the
cIMPACT-NOW group to recommend a new classification.
Separation of ependymal tumors by anatomic site is an
important principle of the new classification and was
prompted by methylome profiling data to indicate that
molecular groups of ependymal tumors in the posterior fossa
and supratentorial and spinal compartments are distinct.
Common recurrent genetic or epigenetic alterations found in
tumors belonging to the main molecular groups have been used
to define tumor types at intracranial sites; C11orf95 and
YAP1 fusion genes for supratentorial tumors and two types of
posterior fossa ependymoma defined by methylation group, PFA
and PFB. A recently described type of aggressive spinal
ependymoma with MYCN amplification has also been included.
Myxopapillary ependymoma and subependymoma have been
retained as histopathologically defined tumor types, but the
classification has dropped the distinction between classic
and anaplastic ependymoma. While the cIMPACT-NOW group
considered that data to inform assignment of grade to
molecularly defined ependymomas are insufficiently mature,
it recommends assigning WHO grade 2 to myxopapillary
ependymoma and allows grade 2 or grade 3 to be assigned to
ependymomas not defined by molecular status.},
subtyp = {Review Article},
cin = {HD01 / B062},
ddc = {610},
cid = {I:(DE-He78)HD01-20160331 / I:(DE-He78)B062-20160331},
pnm = {312 - Functional and structural genomics (POF3-312)},
pid = {G:(DE-HGF)POF3-312},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:32502305},
doi = {10.1111/bpa.12866},
url = {https://inrepo02.dkfz.de/record/156718},
}