Predicting Malignancy in Adnexal Tumors With FAPI PET/CT and FDG PET/CT: A Case Report on a Borderline Ovarian Tumor

Janani Kantharooban Umachanger; Helle Damgaard Zacho; Camilla Sylvest; Anna Poulsgaard Frandsen; Morten Bentestuen

doi:10.1097/RLU.0000000000005537

Predicting Malignancy in Adnexal Tumors With FAPI PET/CT and FDG PET/CT: A Case Report on a Borderline Ovarian Tumor

Janani Kantharooban Umachanger^*, Helle Damgaard Zacho, Camilla Sylvest, Anna Poulsgaard Frandsen, Morten Bentestuen

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Abstract

A 54-year-old woman presented with a 55 × 64-mm tumor in the ovary with high [18F]FDG uptake on [18F]FDG PET/CT highly suggestive of ovarian cancer. Prior to surgery, the patient underwent [68Ga]-Ga- fibroblast activation protein inhibitor (FAPI)-46 PET/CT, which revealed low [68Ga]-Ga-FAPI-46 tumor uptake. Histopathology revealed a borderline ovarian tumor, which has low malignant potential and a 10-year survival rate greater than 93%. High [18F]FDG uptake is considered a fair predictor of malignancy in adnexal tumors. The present case demonstrates the potential superiority of [68Ga]-Ga-FAPI-46 PET/CT over [18F]-FDG PET/CT in differentiating malignant adnexal tumors from borderline ovarian tumors.

Originalsprog	Engelsk
Artikelnummer	10.1097/RLU.0000000000005537
Tidsskrift	Clinical Nuclear Medicine
Antal sider	3
ISSN	0363-9762
DOI	https://doi.org/10.1097/RLU.0000000000005537
Status	E-pub ahead of print - 30 okt. 2024

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title = "Predicting Malignancy in Adnexal Tumors With FAPI PET/CT and FDG PET/CT: A Case Report on a Borderline Ovarian Tumor",

abstract = "A 54-year-old woman presented with a 55 × 64-mm tumor in the ovary with high [18F]FDG uptake on [18F]FDG PET/CT highly suggestive of ovarian cancer. Prior to surgery, the patient underwent [68Ga]-Ga- fibroblast activation protein inhibitor (FAPI)-46 PET/CT, which revealed low [68Ga]-Ga-FAPI-46 tumor uptake. Histopathology revealed a borderline ovarian tumor, which has low malignant potential and a 10-year survival rate greater than 93%. High [18F]FDG uptake is considered a fair predictor of malignancy in adnexal tumors. The present case demonstrates the potential superiority of [68Ga]-Ga-FAPI-46 PET/CT over [18F]-FDG PET/CT in differentiating malignant adnexal tumors from borderline ovarian tumors.",

keywords = "FAPI, FDG, PET/CT, borderline ovarian tumor, ovarian cancer",

author = "Umachanger, {Janani Kantharooban} and Zacho, {Helle Damgaard} and Camilla Sylvest and Frandsen, {Anna Poulsgaard} and Morten Bentestuen",

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AU - Umachanger, Janani Kantharooban

AU - Zacho, Helle Damgaard

AU - Sylvest, Camilla

AU - Frandsen, Anna Poulsgaard

AU - Bentestuen, Morten

PY - 2024/10/30

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N2 - A 54-year-old woman presented with a 55 × 64-mm tumor in the ovary with high [18F]FDG uptake on [18F]FDG PET/CT highly suggestive of ovarian cancer. Prior to surgery, the patient underwent [68Ga]-Ga- fibroblast activation protein inhibitor (FAPI)-46 PET/CT, which revealed low [68Ga]-Ga-FAPI-46 tumor uptake. Histopathology revealed a borderline ovarian tumor, which has low malignant potential and a 10-year survival rate greater than 93%. High [18F]FDG uptake is considered a fair predictor of malignancy in adnexal tumors. The present case demonstrates the potential superiority of [68Ga]-Ga-FAPI-46 PET/CT over [18F]-FDG PET/CT in differentiating malignant adnexal tumors from borderline ovarian tumors.

AB - A 54-year-old woman presented with a 55 × 64-mm tumor in the ovary with high [18F]FDG uptake on [18F]FDG PET/CT highly suggestive of ovarian cancer. Prior to surgery, the patient underwent [68Ga]-Ga- fibroblast activation protein inhibitor (FAPI)-46 PET/CT, which revealed low [68Ga]-Ga-FAPI-46 tumor uptake. Histopathology revealed a borderline ovarian tumor, which has low malignant potential and a 10-year survival rate greater than 93%. High [18F]FDG uptake is considered a fair predictor of malignancy in adnexal tumors. The present case demonstrates the potential superiority of [68Ga]-Ga-FAPI-46 PET/CT over [18F]-FDG PET/CT in differentiating malignant adnexal tumors from borderline ovarian tumors.

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KW - FDG

KW - PET/CT

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Predicting Malignancy in Adnexal Tumors With FAPI PET/CT and FDG PET/CT: A Case Report on a Borderline Ovarian Tumor

Abstract

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