18F-FDG uptake in an ovary containing a hemorrhagic corpus luteal cyst: false-positive PET/CT in a patient with cervical carcinoma.

3Department of Neurology, University of Pittsburgh Medical Center, Pittsburgh, PA 15213. ET with 18F-FDG combined with CT (PET/CT) enables precise localization of FDG uptake to particular structures and is useful for the detection and staging of several malignancies [1–3]. However, benign processes also can result in false-positive 18F-FDG uptake [4, 5]. We report the case of a 31-year-old woman with cervical carcinoma who underwent PET/CT that showed 18F-FDG uptake in an ovary that was misinterpreted as metastatic disease. At surgery 12 days later, the ovary contained a hemorrhagic corpus luteal cyst that was the likely cause for the 18F-FDG accumulation.