Although previous studies showed that expression of GLUTs was mainly positively correlated with FDG uptake in various tumor types,29 human thyroid cancer did not show significant correlations (r = 0.026, p = 0.91 for GLUT1; r = 0.24, p = 0.28 for GLUT3). Here, SLC2A3 is linked to thyroid gland carcinoma.