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@ARTICLE{Deng:276084,
author = {M. Deng and F. Hinz$^*$ and S. Harrabi and D. Sturm$^*$ and
M. Sill$^*$ and A. Korshunov$^*$ and T. Eichkorn and J.
Hörner-Rieber$^*$ and K. Herfarth and C. Jungk and A.
Unterberg and S. Pfister$^*$ and W. Wick$^*$ and A. von
Deimling$^*$ and D. Jones$^*$ and J. Debus$^*$ and F.
Sahm$^*$ and L. König},
title = {{C}linical outcome following surgical resection and
radiotherapy in adult patients with pleomorphic
xanthoastrocytoma as defined by {DNA} methylation
profiling.},
journal = {Neuro-oncology practice},
volume = {10},
number = {3},
issn = {2054-2577},
address = {Oxford},
publisher = {Oxford Univ. Press},
reportid = {DKFZ-2023-00990},
pages = {307 - 314},
year = {2023},
abstract = {Molecular brain tumor classification using DNA methylation
profiling has revealed that the methylation-class of
pleomorphic xanthoastrocytoma (mcPXA) comprised a
substantial portion of divergent initial diagnoses, which
had been established based on histology alone. This study
aimed to characterize the survival outcome in patients with
mcPXAs-in light of the diverse selected treatment regimes.A
retrospective cohort of adult mcPXAs were analyzed in regard
to their progression-free survival following surgical
resection and postoperative radiotherapy. Radiotherapy
treatment plans were correlated with follow-up images to
characterize the pattern of relapse. Treatment toxicities
and molecular tumor characteristics were further
analyzed.Divergent initial histological diagnoses were
encountered in $40.7\%.$ There was no significant difference
in local progression-free (PFS) and overall survival (OS)
following gross total or subtotal resection. Postoperative
radiotherapy was completed in $81\%$ (22/27) following
surgical intervention. Local PFS was $54.4\%$ $(95\%$ CI:
$35.3-84.0\%)$ and OS was $81.3\%$ $(95\%$ CI: $63.8-100\%)$
after 3 years following postoperative radiotherapy. Initial
relapses post-radiotherapy were primarily located in the
previous tumor location and/or the planning target volume
(PTV) (12/13). All patients in our cohort demonstrated the
prognostically favorable pTERT-wildtype mcPXA.Our study
demonstrated that adult patients with mcPXAs display a worse
progression-free survival compared to the reported WHO grade
2 PXAs. Future matched-pair analyses are required with a
non-irradiated cohort to elucidate the benefit of
postoperative radiotherapy in adult patients with mcPXAs.},
keywords = {DNA methylation profiling (Other) / Pleomorphic
xanthoastrocytoma (Other) / glioma (Other) / molecular
diagnostics (Other) / radiotherapy (Other)},
cin = {B300 / HD01 / B360 / B062 / E050 / B320},
ddc = {610},
cid = {I:(DE-He78)B300-20160331 / I:(DE-He78)HD01-20160331 /
I:(DE-He78)B360-20160331 / I:(DE-He78)B062-20160331 /
I:(DE-He78)E050-20160331 / I:(DE-He78)B320-20160331},
pnm = {312 - Funktionelle und strukturelle Genomforschung
(POF4-312)},
pid = {G:(DE-HGF)POF4-312},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:37188167},
pmc = {pmc:PMC10180362},
doi = {10.1093/nop/npad004},
url = {https://inrepo02.dkfz.de/record/276084},
}