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We present a case of clear cell renal cell carcinoma, which demonstrates complementary FDG and prostate-specific membrane antigen (PSMA) uptake on metastases in PET/CT, as an example of tumor heterogeneity. The patient had non-FDG-avid lung and bone metastases with PSMA uptake, whereas metastatic cervical and axillary lymph nodes showed vice versa, and skeletal muscle metastasis to vastus lateralis, which is an unusual region for metastasis, showed both PSMA and FDG positivity. In response assessment, mix response was detected. It seems that 68Ga-PSMA and 1
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