68 Ga-FAPI-04 PET/CT and 18 F-FDG PET/CT in Metastatic Papillary Renal Cell Cancer.

Civan, Caner; Isik, Emine Goknur; Karadogan, Seyfullah; Sanli, Yasemin; Kuyumcu, Serkan · Clin Nucl Med · 2023

case_report · Level V

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Abstract

Papillary renal cell cancer is a rare malignancy with limited treatment options in the advanced stage of the disease. We present the case of a 62-year-old man with progressive left-sided papillary renal cell carcinoma who underwent 68 Ga-FAPI (fibroblast activated protein inhibitor)-04 and 18 F-FDG PET/CT imaging. 68 Ga-FAPI-04 PET/CT demonstrated variable FAP expression in all metastatic lesions detected by 18 F-FDG PET/CT, including multiple lymph nodes, bone, and thyroid. This case highlights that FAP-targeted imaging can be a promising modality for diagnostic and theranostic use in papillary renal cell carcinoma.

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