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18F-Fluorocholine, 18F-FDG, and 18F-Fluoroethyl Tyrosine PET/CT in Parathyroid Cancer
Margit Hatzl1, Julia C Röper-Kelmayr, Franz A Fellner
1From the *Clinical Institute of Nuclear Medicine and Endocrinology, and †Central Radiology Institute, Kepler University Hospital, Med. Campus III, Linz, Austria; ‡Medical Faculty of the University of Erlangen, Germany; and §Department of Nuclear Medicine, Medical University of Innsbruck, Innsbruck, Austria.
Abstract:
We report on a 71-year-old woman presenting with biochemical features indicating recurrent disease in long-term follow-up of left-sided parathyroid carcinoma. She had undergone several surgical procedures including total thyroidectomy, partial resection of the esophageal wall, and curative neck radiation 12 years previously. PET/CT using F-fluorocholine revealed high uptake in local relapse in the lower neck, comparable to F-FDG, whereas only faint uptake was observed with F-fluoroethyl tyrosine. As shown in this case, imaging with FDG and F-fluorocholine is feasible in (recurrent) parathyroid carcinoma and clearly superior to F-fluoroethyl tyrosine.
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