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. Author manuscript; available in PMC: 2016 Nov 1.
Published in final edited form as: Pediatr Neurol. 2015 Aug 10;53(5):379–393. doi: 10.1016/j.pediatrneurol.2015.08.001

Figure 1.

Figure 1

Figure 1

Figure 1

Transaxial FDG-PET images of a G1D patient of 9 years of age harboring a missense mutation (A) and of a 8 year old G1D patient with no mutation in the coding region of SLC2A1 (B). (C) illustrates a 20-year old normal scan for comparison. The images in A and B are virtually indistinguishable, illustrating the fact that DNA-mutation negative patients are phenocopies (in this and all other respects) of patients genetically diagnosed.