Fibroblast activation protein inhibitor (FAPI)-negative huge renal cell carcinoma demonstrating an intriguing pattern on [99mTc]Tc-FAPI-46 scintigraphy

This report describes a 58-year-old man with right flank pain, hematuria, and dysuria, leading to the discovery of a large renal mass via ultrasonography. A contrast-enhanced computed tomography (CT) scan revealed a huge abdominal mass with areas of necrosis and calcification. [99mTc]Tc-FAPI-46 scin...

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Main Authors: Nasrin Raeisi, Amin Saber Tanha, Salman Soltani, Ali zare, Atena Aghaee
Format: Article
Language:English
Published: Via Medica 2025-08-01
Series:Nuclear Medicine Review
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Online Access:https://journals.viamedica.pl/nuclear_medicine_review/article/view/106313
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author Nasrin Raeisi
Amin Saber Tanha
Salman Soltani
Ali zare
Atena Aghaee
author_facet Nasrin Raeisi
Amin Saber Tanha
Salman Soltani
Ali zare
Atena Aghaee
author_sort Nasrin Raeisi
collection DOAJ
description This report describes a 58-year-old man with right flank pain, hematuria, and dysuria, leading to the discovery of a large renal mass via ultrasonography. A contrast-enhanced computed tomography (CT) scan revealed a huge abdominal mass with areas of necrosis and calcification. [99mTc]Tc-FAPI-46 scintigraphy showed photopenic areas and accumulation in a compressed gallbladder, showing an intriguing pattern. A comprehensive surgical resection of the tumor involving the right kidney, adrenal gland, ascending and a portion of transverse colon and liver was successfully performed, and the pathological evaluation confirmed the diagnosis of clear cell renal cell carcinoma (ccRCC). This case represents the pioneering application of [99mTc]Tc-FAPI-46 scintigraphy in ccRCC with sarcomatoid features, demonstrating a lack of avidity.
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institution Kabale University
issn 1506-9680
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language English
publishDate 2025-08-01
publisher Via Medica
record_format Article
series Nuclear Medicine Review
spelling doaj-art-a7cf8febf8da422b8d8518161ce3c8912025-08-21T07:22:29ZengVia MedicaNuclear Medicine Review1506-96801644-43452025-08-0128Continuous Publishing10.5603/nmr.106313Fibroblast activation protein inhibitor (FAPI)-negative huge renal cell carcinoma demonstrating an intriguing pattern on [99mTc]Tc-FAPI-46 scintigraphyNasrin Raeisi0Amin Saber Tanha1https://orcid.org/0009-0008-0290-0412Salman Soltani2Ali zare3Atena Aghaee4Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, IranNuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, IranDepartment of Urology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, IranDepartment of Urology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, IranNuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, IranThis report describes a 58-year-old man with right flank pain, hematuria, and dysuria, leading to the discovery of a large renal mass via ultrasonography. A contrast-enhanced computed tomography (CT) scan revealed a huge abdominal mass with areas of necrosis and calcification. [99mTc]Tc-FAPI-46 scintigraphy showed photopenic areas and accumulation in a compressed gallbladder, showing an intriguing pattern. A comprehensive surgical resection of the tumor involving the right kidney, adrenal gland, ascending and a portion of transverse colon and liver was successfully performed, and the pathological evaluation confirmed the diagnosis of clear cell renal cell carcinoma (ccRCC). This case represents the pioneering application of [99mTc]Tc-FAPI-46 scintigraphy in ccRCC with sarcomatoid features, demonstrating a lack of avidity.https://journals.viamedica.pl/nuclear_medicine_review/article/view/106313renal cell carcinomaFAPIurologic neoplasmoncologytheranostics
spellingShingle Nasrin Raeisi
Amin Saber Tanha
Salman Soltani
Ali zare
Atena Aghaee
Fibroblast activation protein inhibitor (FAPI)-negative huge renal cell carcinoma demonstrating an intriguing pattern on [99mTc]Tc-FAPI-46 scintigraphy
Nuclear Medicine Review
renal cell carcinoma
FAPI
urologic neoplasm
oncology
theranostics
title Fibroblast activation protein inhibitor (FAPI)-negative huge renal cell carcinoma demonstrating an intriguing pattern on [99mTc]Tc-FAPI-46 scintigraphy
title_full Fibroblast activation protein inhibitor (FAPI)-negative huge renal cell carcinoma demonstrating an intriguing pattern on [99mTc]Tc-FAPI-46 scintigraphy
title_fullStr Fibroblast activation protein inhibitor (FAPI)-negative huge renal cell carcinoma demonstrating an intriguing pattern on [99mTc]Tc-FAPI-46 scintigraphy
title_full_unstemmed Fibroblast activation protein inhibitor (FAPI)-negative huge renal cell carcinoma demonstrating an intriguing pattern on [99mTc]Tc-FAPI-46 scintigraphy
title_short Fibroblast activation protein inhibitor (FAPI)-negative huge renal cell carcinoma demonstrating an intriguing pattern on [99mTc]Tc-FAPI-46 scintigraphy
title_sort fibroblast activation protein inhibitor fapi negative huge renal cell carcinoma demonstrating an intriguing pattern on 99mtc tc fapi 46 scintigraphy
topic renal cell carcinoma
FAPI
urologic neoplasm
oncology
theranostics
url https://journals.viamedica.pl/nuclear_medicine_review/article/view/106313
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AT aminsabertanha fibroblastactivationproteininhibitorfapinegativehugerenalcellcarcinomademonstratinganintriguingpatternon99mtctcfapi46scintigraphy
AT salmansoltani fibroblastactivationproteininhibitorfapinegativehugerenalcellcarcinomademonstratinganintriguingpatternon99mtctcfapi46scintigraphy
AT alizare fibroblastactivationproteininhibitorfapinegativehugerenalcellcarcinomademonstratinganintriguingpatternon99mtctcfapi46scintigraphy
AT atenaaghaee fibroblastactivationproteininhibitorfapinegativehugerenalcellcarcinomademonstratinganintriguingpatternon99mtctcfapi46scintigraphy