Fig. 1
Examples of [11C] choline and [18F] FET PET scans with biopsy location (green square) and corresponding histology. a 24-year-old male patient with an IDH1-mutated 1p/19q-codeleted WHO grade II oligodendroglioma with a biopsy sample of clear histological tumour presence. b A 55-year-old female patient with an IDH1-wildtype glioblastoma with in this biopsy sample subtle histological tumour presence in the form of dispersed pleomorphic nuclei. c 21-year-old male patient with an IDH1-mutated grade II astrocytoma with a biopsy sample of clear histological tumour presence without visual [11C] choline uptake. HE = haematoxylin and eosin staining, both = [11C] choline and [18F] FET PET