False-positive I-131 uptake by an ovarian serous cystadenofibroma.
We present the case of a 53-year-old woman after thyroidectomy with metastatic multifocal papillary carcinoma and encapsulated focal Hurthle cell carcinoma. Postoperatively, an I-131 whole-body scan revealed uptake in the low midline anterior neck. She was treated with 151.5 mCi of I-131. The 1-year follow-up I-131 whole-body scan revealed a new pelvic mass with I-131 uptake. Pelvic CT showed bilateral complex ovarian masses. She underwent surgical excision, revealing a right ovarian endometriotic cyst and a left ovarian cystadenofibroma, without thyroid tissue involvement. I-131 uptake in a cystadenofibroma is extremely rare and has been reported only once to our knowledge.
Department of Radiology, Division of Nuclear Medicine, Winthrop-University Hospital, Mineola, NY 11501, USA. jflug@winthrop.org
Jonathan
J
Flug
Katherine
K
Lameka
Raymond
R
Lee
Douglas S
DS
Katz
Wei-Wen
WW
Sung
Elizabeth
E
Yung
D000232:Adenofibroma / Q000000981:diagnostic imaging*; D002291:Carcinoma, Papillary / Q000000981:diagnostic imaging / Q000601:surgery; D018293:Cystadenoma, Serous / Q000000981:diagnostic imaging*; D005189:False Positive Reactions; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007457:Iodine Radioisotopes; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000000981:diagnostic imaging*; D010388:Pelvis / Q000000981:diagnostic imaging; D011877:Radionuclide Imaging; D014057:Tomography, X-Ray Computed
D007457:Iodine Radioisotopes