Guzel, YunusKaplan, IhsanKepenek, FeratSogutcu, NilgunKomek, Halil2024-04-242024-04-2420220363-97621536-0229https://doi.org/10.1097/RLU.0000000000004166https://hdl.handle.net/11468/17339A soft tissue lesion surrounding the left kidney was detected in F-18-FDG PET/CT performed with suspicion of recurrence in a patient who was operated for descending colon cancer and showed mild FDG uptake. Intense fibroblast activation protein-specific inhibitor (FAPI) uptake in the perirenal soft tissue was observed in Ga-68-FAPI-04 PET/CT. Tru-cut biopsy of the left perirenal lesion revealed signet ring cell colon carcinoma metastasis. This case demonstrated that Ga-68-FAPI-04 PET/CT could be a promising radiopharmaceutical for the evaluation of signet ring cell colon carcinomas.eninfo:eu-repo/semantics/closedAccessFdgFapiPetCtSignet Ring CellColon CancerEditorial477E509E512WOS:0008076929000093567514210.1097/RLU.0000000000004166Q1