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Figure 3. 44-year-old patient with a history of unilateral right-sided breast cancer and rising tumour markers. (a) Coronal whole-body PET image shows an area of increased glucose metabolism in the right supraclavicular fossa, indicating a malignant lymph node (black arrow). (b) Corresponding axial PET image confirmed a focal region of increased glucose metabolism (black arrow). (c) Axial CT image with no evidence of a contrast-enhancing mass or lymph node. (d) Corresponding PET/CT image detected the area of increased glucose metabolism in supraclavicular fatty tissue (black arrow). Overall, PET was evaluated as false positive; combined PET/CT supported the correct diagnosis.
