False-positive I-131 uptake by an ovarian serous cystadenofibroma.

Jonathan Flug, Katherine Lameka, Raymond Lee, Douglas S. Katz, Wei Wen Sung, Elizabeth Yung

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)178-180
Number of pages3
JournalClinical nuclear medicine
Issue number2
StatePublished - Feb 2012

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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