title: Subacute Stroke Mimicking Cerebral Metastasis in 68Ga-PSMA-HBED-CC PET/CT.
abstract: A 65-year-old man with disseminated bone metastases of prostate cancer was referred for Ga-PSMA-HBED-CC-PET/CT (short PSMA-PET/CT) to exclude visceral metastases before treatment of bone metastases with Ra-dichloride. Apart from disseminated bone metastases, PSMA-PET/CT revealed a focal cerebral tracer uptake in the right frontal lobe highly suspicious for cerebral spread. According to patient history, a cerebral infarction occurred 14 days before PSMA imaging in corresponding localization confirmed by MRI scanning. This case demonstrates the possibility of false-positive finding of cerebral metastases in PSMA-PET early after stroke.
authors.affiliation: From the *Department of Nuclear Medicine, University Hospital Münster, Münster, Germany; and †European Institute for Molecular Imaging, University of Münster, Münster, Germany.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Noto
authors.forename: Alexis
authors.initials: A
authors.lastname: Vrachimis
authors.forename: Michael
authors.initials: M
authors.lastname: Schäfers
authors.forename: Lars
authors.initials: L
authors.lastname: Stegger
authors.forename: Kambiz
authors.initials: K
authors.lastname: Rahbar
mesh_terms: D000368:Aged; D000954:Antigens, Surface / Q000737:chemistry*; D001932:Brain Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary*; D003937:Diagnosis, Differential; D004492:Edetic Acid / Q000031:analogs & derivatives* / Q000737:chemistry; D043425:Glutamate Carboxypeptidase II / Q000737:chemistry*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D000072078:Positron Emission Tomography Computed Tomography; D011471:Prostatic Neoplasms / Q000473:pathology*; D020521:Stroke / Q000000981:diagnostic imaging*
chemical_list: D000954:Antigens, Surface; C075313:N,N'-bis(2-hydroxy-5-(ethylene-beta-carboxy)benzyl)ethylenediamine N,N'-diacetic acid; D004492:Edetic Acid; C473848:FOLH1 protein, human; D043425:Glutamate Carboxypeptidase II