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@ARTICLE{Niedermeyer:305541,
author = {S. Niedermeyer and M. Schmutzer-Sondergeld and S. V.
Kirchleitner and S. Quach and N. L. Albert$^*$ and N. Thon},
title = {{PET} imaging pitfall in recurrent oligodendroglioma with
drug-resistant epilepsy: illustrative case.},
journal = {Journal of neurosurgery / Case lessons},
volume = {10},
number = {17},
issn = {2694-1902},
address = {Charlottesville, Va.},
publisher = {American Association of Neurological Surgeons},
reportid = {DKFZ-2025-02215},
pages = {CASE25589},
year = {2025},
abstract = {MRI and PET imaging using radiolabeled amino acids offer a
valuable adjunct for defining the extent of tumor growth in
gliomas, assessing treatment response, and distinguishing
true progression from pseudoprogression.The authors report
the case of a 37-year-old patient with intractable epilepsy
and suspected recurrence of an oligodendroglioma. MRI
revealed progressive gadolinium enhancement in the right
frontal lobe, and both fluorethylthyrosine PET and
translocator protein imaging demonstrated high tracer uptake
in the same region, raising concern for tumor recurrence and
progression. The patient underwent extensive resection of
the right frontal lobe beyond contrast enhancement.
Postoperatively, seizures were well controlled.
Interestingly, histopathological analysis revealed
predominantly normal brain tissue next to a limited area of
tumor recurrence, demonstrating that the observed MRI and
PET abnormalities were seizure-induced changes rather than
tumor recurrence.In patients with epileptic seizures, MRI
and PET abnormalities may overestimate tumor recurrence and
should be interpreted with caution.
https://thejns.org/doi/10.3171/CASE25589.},
keywords = {PET imaging (Other) / epilepsy (Other) / oligodendroglioma
(Other)},
cin = {MU01},
ddc = {610},
cid = {I:(DE-He78)MU01-20160331},
pnm = {899 - ohne Topic (POF4-899)},
pid = {G:(DE-HGF)POF4-899},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:41144997},
doi = {DOI:10.3171/CASE25589},
url = {https://inrepo02.dkfz.de/record/305541},
}