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British Journal of Radiology (2006) 79, 110-115
© 2006 British Institute of Radiology
doi: 10.1259/bjr/33143536
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PET-CT findings in surgically transposed ovaries

R Zissin, MD1,2,3, U Metser, MD1, H Lerman, MD1, G Lievshitz, MD1, T Safra, MD4 and E Even-Sapir, MD, PhD1,3

Department of 1 Nuclear Medicine and 4 Oncologic Surgery Unit, Tel-Aviv Sourasky Medical Center and the Department of 2 Diagnostic Imaging, Sapir Medical Center, Kfar Saba, affiliated to the 3 Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel


Figure 1
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  		Figure 1. A 30-year-old woman, 10 years after radical hysterectomy and bilateral ovarian transposition for carcinoma of the cervix, referred for PET/CT for suspected recurrence on MRI (patient no. 4). (a) An axial T2 weighted MR image at the pelvic inlet shows the transposed right ovary (RO) anteriorly to the ascending colon (AC) as a 5 cm hyperintense mass with a thin hypointense rim, suspected to be a necrotic tumour recurrence. Note also the left transposed ovary (LO), abutting the anterior aspect of the descending colon (DC), as a hypointense lesion. That ovary was not reported on the MRI. (b) Axial PET/CT images (from left to right: CT, PET and fused PET/CT images). On the CT, the bilateral transposed ovaries are seen (thin white arrows). Note the diminution in size of the right ovary in comparison with the previous MRI performed 1 month earlier, most likely related to its periodic functional changes. The left transposed ovary shows increased FDG uptake on the PET and on fused images (thin arrows). Additional physiological sites of FDG uptake are seen, including bowel (arrowhead), bone marrow (medium-size arrow) and iliac blood vessels (large arrow). (c) Coronal PET-CT images (from left to right: CT, PET and fused PET/CT images) show mild increased FDG uptake in the left transposed ovary (arrows). Physiological FDG uptake is seen in the brain, myocardium, bowel and liver.

 

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  		Figure 2. A 39-year-old patient with a previous hysterectomy for uterine non-Hodgkin's lymphoma, referred for suspected central nervous system recurrence (patient no. 6). (a) On PET data (from left to right: coronal, sagittal and transaxial images) increased FDG uptake was detected in the right abdomen (arrows). (b) On PET-CT (from left to right: CT, PET and fused PET/CT images) the increased uptake corresponded in location to a soft-tissue mass posterolateral to the cecum, adjacent to surgical clips, identified as a transposed ovary (arrows). (c) PET/CT study performed 6 months later, without treatment in the interim. The transposed ovary shows no increased uptake, confirming the functional aetiology of FDG uptake on the first study (arrow).

 




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