Dual-tracer PET in prostate synovial sarcoma: discordant FDG and PSMA uptake with metastatic patterns.

Chen, Qiaochu; Xu, Lian; Wang, Cheng; Liu, Zebing; Xin, Mei; Huang, Gang; Liu, Jianjun; Zhang, Chenpeng · Eur J Nucl Med Mol Imaging · 2025

case_report · Level V

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Abstract

We present the case of primary prostatic synovial sarcoma exhibiting discordant tracer avidity on [<sup>18</sup>F]-FDG PET/MRI and [<sup>18</sup>F]-PSMA PET/CT-a metabolic divergence suggesting clonal evolution and potential eligibility for PSMA-targeted radioligand therapy to combat poor survival in this rare sarcoma subtype.

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