Fig. 4

Patients with metastatic thyroid cancer with greater FDG uptake than PSMA uptake: examples. a, b [⁶⁸Ga]Ga-PSMA-11 PET MIP (a) and 2-[¹⁸F]FDG PET MIP (b) in a patient (Patient 4) with anaplastic thyroid carcinoma. Thyroid bed recurrence (large arrows) and right hilar nodal metastasis (small arrows) are more avid on FDG (median SUVmax 14.3) than PSMA (median SUVmax 3.3). c, d [⁶⁸Ga]Ga-PSMA-11 PET MIP (c) and 2-[¹⁸F]FDG PET MIP (d) in a patient (Patient 1) with papillary thyroid carcinoma. Multiple lower cervical and upper thoracic vertebral body metastases (circled) are more avid on FDG (median SUVmax 21.1) than on PSMA (median SUVmax 9.0)