Mucinous urachal adenocarcinoma: A potential nonfluorodeoxyglucose-avid pitfall on 18fluorine-fluorodeoxyglucose positron emission tomography/computed tomography.
- Resource Type
- Article
- Authors
- Das, Jeeban; Vargas, Hebert; Ulaner, Gary
- Source
- World Journal of Nuclear Medicine. Oct-Dec2020, Vol. 19 Issue 4, p432-434. 3p.
- Subject
- *COMPUTED tomography
*POSITRON emission tomography computed tomography
*MUCINOUS adenocarcinoma
*MAGNETIC resonance imaging
*DUCTAL carcinoma
- Language
- ISSN
- 1450-1147
Mucinous adenocarcinoma of the urachal remnant is a nonurothelial malignancy that may be asymptomatic until locally advanced or metastatic. We describe a 37-year-old woman with invasive ductal breast carcinoma who underwent 18Fluorine-fluorodeoxyglucose (18F-FDG) positron emission tomography (PET) computed tomography (CT) demonstrating a non-FDG avid pelvic mass, initially suspected to represent a pedunculated uterine fibroid. Magnetic resonance imaging revealed a mixed solid-cystic mass separate from the uterus, suspicious for urachal neoplasm, confirmed as mucinous adenocarcinoma on histopathology. Urachal tumors may not be FDG-avid and represent a potential pitfall on FDG PET/CT. [ABSTRACT FROM AUTHOR]