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@ARTICLE{Lohmann:852419,
author = {Lohmann, Philipp and Piroth, Marc D. and Sellhaus, Bernd
and Weis, Joachim and Geisler, Stefanie and Oros-Peusquens,
Ana-Maria and Mohlberg, Hartmut and Amunts, Katrin and Shah,
Nadim J. and Galldiks, Norbert and Langen, Karl-Josef},
title = {{C}orrelation of {D}ynamic
{O}-(2-[18{F}]{F}luoroethyl)-{L}-{T}yrosine {P}ositron
{E}mission {T}omography, {C}onventional {M}agnetic
{R}esonance {I}maging, and {W}hole-{B}rain {H}istopathology
in a {P}retreated {G}lioblastoma: {A} {P}ostmortem {S}tudy},
journal = {World neurosurgery},
volume = {119},
issn = {1878-8750},
address = {Amsterdam},
publisher = {Elsevier},
reportid = {FZJ-2018-05373},
pages = {e653-e660},
year = {2018},
abstract = {ObjectiveAmino acid positron emission tomography (PET)
using O-(2-[18F]fluoroethyl)-L-tyrosine (FET) provides
important additional information on the extent of viable
tumor tissue of glioblastoma compared with magnetic
resonance imaging (MRI). Especially after radiochemotherapy,
progression of contrast enhancement in MRI is equivocal and
may represent either tumor progression or treatment-related
changes. Here, the first case comparing postmortem
whole-brain histology of a patient with pretreated
glioblastoma with dynamic in vivo FET PET and MRI is
presented.MethodsA 61-year-old patient with glioblastoma
initially underwent partial tumor resection and died 11
weeks after completion of chemoradiation with concurrent
temozolomide. Three days before the patient died, a
follow-up FET PET and MRI scan indicated tumor progression.
Autopsy was performed 48 hours after death. After formalin
fixation, a 7-cm bihemispherical segment of the brain
containing the entire tumor mass was cut into 3500
consecutive 20μm coronal sections. Representative sections
were stained with hematoxylin and eosin stain, cresyl
violet, and glial fibrillary acidic protein
immunohistochemistry. An experienced neuropathologist
identified areas of dense and diffuse neoplastic
infiltration, astrogliosis, and necrosis. In vivo FET PET,
MRI datasets, and postmortem histology were co-registered
and compared by 3 experienced physicians.ResultsIncreased
uptake of FET in the area of equivocal contrast enhancement
on MRI correlated very well with dense infiltration by vital
tumor cells and showed tracer kinetics typical for malignant
gliomas. An area of predominantly reactive astrogliosis
showed only moderate uptake of FET and tracer kinetics
usually observed in benign lesions.ConclusionsThis case
report impressively documents the correct imaging of a
progressive glioblastoma by FET PET.},
cin = {INM-1 / INM-4 / INM-3},
ddc = {610},
cid = {I:(DE-Juel1)INM-1-20090406 / I:(DE-Juel1)INM-4-20090406 /
I:(DE-Juel1)INM-3-20090406},
pnm = {571 - Connectivity and Activity (POF3-571)},
pid = {G:(DE-HGF)POF3-571},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:30077752},
UT = {WOS:000447941300079},
doi = {10.1016/j.wneu.2018.07.232},
url = {https://juser.fz-juelich.de/record/852419},
}