False-Positive 68 Ga-DOTATATE Uptake in a Uterine Subserosal Fibroid Mimicking Mesenteric Neuroendocrine Tumor : A Case Study.

Khalaj, Kamand; Rowe, Julie H; Thupili, Chakradhar R; Tammisetti, Varaha S · Clin Nucl Med · 2023

case_report · Level V

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Abstract

68 Ga-DOTATATE PET/CT is a highly sensitive and specific imaging modality in detecting neuroendocrine tumors. False-positive DOTATATE uptake poses diagnostic challenges. False-positive uptake in a uterine fibroid is the third most common location. We report the case of a 45-year-old woman with clinical concern for possible neuroendocrine tumor showing moderate focal DOTATATE uptake, which was initially thought of to be localized to mesentery on PET/CT images but was subsequently localized to a subserosal uterine fibroid following MRI. Patient underwent hysterectomy, further confirming that the uterine myometrial uptake is within the subserosal fibroid.

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