title: Ovarian mass mimicking malignancy: a case report.
abstract: A 32-year-old female who suffered from abdominal pain underwent (18)F-fluorodexoyglucose (FDG) positron emission tomography/computed tomography (PET/CT) for the diagnostic workup of pelvic mass lesions. Cystic mass lesions in the bilateral ovaries showed wall thickening and intense hypermetabolism along the rim. In addition, multifocal intense hypermetabolic lymphadenopathies were seen in the left paraaortic lymph node (LN), aortocaval LN, and both common iliac LNs. We interpreted these findings as bilateral ovarian cancer with retroperitoneal metastatic lymphadenopathies rather than endometriosis with reactive lymphadenopathies. However, histopathological examination confirmed the ovarian mass lesions as tubo-ovarian abscesses. We report a case that even if simultaneous hypermetabolic retroperitoneal LNs are seen, intense hypermetabolic lesions in both ovaries can be in consequence of inflammatory change.
authors.affiliation: Hospital and Research Institute, National Cancer Center, Goyang, Korea.
authors.forename: Yong-Il
authors.initials: YI
authors.lastname: Kim
authors.affiliation: Hospital and Research Institute, National Cancer Center, Goyang, Korea ; Department of Nuclear Medicine, National Cancer Center, Madu 1-dong, Ilsandong-gu, Goyang-si, Gyeonggi-do 410-769 Korea.
authors.forename: Seok-Ki
authors.initials: SK
authors.lastname: Kim
authors.affiliation: Hospital and Research Institute, National Cancer Center, Goyang, Korea.
authors.forename: Jeong-Won
authors.initials: JW
authors.lastname: Lee
authors.affiliation: Hospital and Research Institute, National Cancer Center, Goyang, Korea.
authors.forename: Sang Mi
authors.initials: SM
authors.lastname: Lee
authors.affiliation: Hospital and Research Institute, National Cancer Center, Goyang, Korea.
authors.forename: Tae-Sung
authors.initials: TS
authors.lastname: Kim
keywords: Ovary; PET/CT; Retroperitoneal lymph node; Tubo-ovarian abscess