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Tru-cut biopsy of the left perirenal lesion revealed signet ring cell colon carcinoma metastasis. This case demonstrated that <jats:sup>68<\/jats:sup>Ga-FAPI-04 PET\/CT could be a promising radiopharmaceutical for the evaluation of signet ring cell colon carcinomas.<\/jats:p>","DOI":"10.1097\/rlu.0000000000004166","type":"journal-article","created":{"date-parts":[[2022,4,5]],"date-time":"2022-04-05T14:13:49Z","timestamp":1649168029000},"page":"e509-e512","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":8,"title":["Perirenal Infiltration of Signet Ring Cell Colon Carcinoma Shown by 68Ga-FAPI PET\/CT"],"prefix":"10.1097","volume":"47","author":[{"given":"Yunus","family":"G\u00fczel","sequence":"first","affiliation":[{"name":"Nuclear Medicine"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"\u0130hsan","family":"Kaplan","sequence":"additional","affiliation":[{"name":"Nuclear 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