Fig. 4
From: Genetic and epigenetic stability of oligodendrogliomas at recurrence
Representative cases illustrating intratumoral heterogeneity. a In patient 14, the Gd-enhanced tumor center and the marginal non-enhanced part of the tumor were separately collected. The TERT promoter mutation was different in each tumor region. b In patient 15, the tumor center with MET-PET high uptake, and the marginal tumor portion with MET-PET low uptake, were separately collected. Only the tissue with MET-PET high uptake had TERT promoter mutation