68Ga-DOTA-FAPI-04 Imaging of Bilateral Phyllodes Tumor.

We present a case of bilateral Phyllodes tumor located in both breasts in a 41-year-old woman who was detected with increased uptake on 68Ga-FAPI-04 (fibroblast activation protein inhibitor) and 18F-FDG PET/CT imaging. The tumor filling up the right breast was identified as borderline Phyllodes. The tumor with mild uptake in the left breast was reported as a benign Phyllodes tumor.