000852419 001__ 852419 000852419 005__ 20210129235049.0 000852419 0247_ $$2doi$$a10.1016/j.wneu.2018.07.232 000852419 0247_ $$2ISSN$$a1878-8750 000852419 0247_ $$2ISSN$$a1878-8769 000852419 0247_ $$2Handle$$a2128/21805 000852419 0247_ $$2pmid$$apmid:30077752 000852419 0247_ $$2WOS$$aWOS:000447941300079 000852419 037__ $$aFZJ-2018-05373 000852419 082__ $$a610 000852419 1001_ $$0P:(DE-Juel1)145110$$aLohmann, Philipp$$b0$$eCorresponding author 000852419 245__ $$aCorrelation of Dynamic O-(2-[18F]Fluoroethyl)-L-Tyrosine Positron Emission Tomography, Conventional Magnetic Resonance Imaging, and Whole-Brain Histopathology in a Pretreated Glioblastoma: A Postmortem Study 000852419 260__ $$aAmsterdam$$bElsevier$$c2018 000852419 3367_ $$2DRIVER$$aarticle 000852419 3367_ $$2DataCite$$aOutput Types/Journal article 000852419 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1541680781_28960 000852419 3367_ $$2BibTeX$$aARTICLE 000852419 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000852419 3367_ $$00$$2EndNote$$aJournal Article 000852419 520__ $$aObjectiveAmino 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. 000852419 536__ $$0G:(DE-HGF)POF3-571$$a571 - Connectivity and Activity (POF3-571)$$cPOF3-571$$fPOF III$$x0 000852419 588__ $$aDataset connected to CrossRef 000852419 7001_ $$0P:(DE-HGF)0$$aPiroth, Marc D.$$b1 000852419 7001_ $$0P:(DE-HGF)0$$aSellhaus, Bernd$$b2 000852419 7001_ $$0P:(DE-HGF)0$$aWeis, Joachim$$b3 000852419 7001_ $$0P:(DE-Juel1)131773$$aGeisler, Stefanie$$b4$$ufzj 000852419 7001_ $$0P:(DE-Juel1)131782$$aOros-Peusquens, Ana-Maria$$b5$$ufzj 000852419 7001_ $$0P:(DE-Juel1)131660$$aMohlberg, Hartmut$$b6$$ufzj 000852419 7001_ $$0P:(DE-Juel1)131631$$aAmunts, Katrin$$b7$$ufzj 000852419 7001_ $$0P:(DE-Juel1)131794$$aShah, Nadim J.$$b8$$ufzj 000852419 7001_ $$0P:(DE-Juel1)143792$$aGalldiks, Norbert$$b9$$ufzj 000852419 7001_ $$0P:(DE-Juel1)131777$$aLangen, Karl-Josef$$b10$$ufzj 000852419 773__ $$0PERI:(DE-600)2530041-6$$a10.1016/j.wneu.2018.07.232$$gp. S1878875018317121$$pe653-e660$$tWorld neurosurgery$$v119$$x1878-8750$$y2018 000852419 8564_ $$uhttps://juser.fz-juelich.de/record/852419/files/1ADF51E3.pdf$$yPublished on 2018-08-02. Available in OpenAccess from 2019-08-02. 000852419 8564_ $$uhttps://juser.fz-juelich.de/record/852419/files/1ADF51E3.pdf?subformat=pdfa$$xpdfa$$yPublished on 2018-08-02. 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