Interesting ImagesIntraoperative Detection of Hyperplastic Parathyroid Gland With Positron Emitter 18F-Fluorocholine and Handheld ProbeGolubić, Anja Tea MD∗; Poljak, Frano MSc (Phys)∗; Bumber, Boris MD, PhD†; Huić, Dražen MD, PhD∗,‡Author Information From the Departments of ∗Nuclear Medicine and Radiation Protection †Otolaryngology, Head and Neck Surgery, University Hospital Centre Zagreb ‡University of Zagreb, School of Medicine, Zagreb, Croatia. Received for publication February 12, 2020; revision accepted April 4, 2020. Conflicts of interest and sources of funding: none declared. Correspondence to: Anja Tea Golubić, MD, Department of Nuclear Medicine and Radiation Protection, University Hospital Centre Zagreb, Kišpatićeva 12, 10000 Zagreb, Croatia. E-mail: firstname.lastname@example.org. Clinical Nuclear Medicine: August 2020 - Volume 45 - Issue 8 - p 636-637 doi: 10.1097/RLU.0000000000003106 Buy Metrics Abstract We present the first intraoperative detection of a hyperplastic parathyroid gland with a positron emitter 18F-fluorocholine and handheld probe, with the estimation of the absorbed dose to the surgeon and surgical staff. Intraoperative positron emitter detection enabled the resection of a small parathyroid gland, resulting in normal postoperative values of PTH and serum calcium in a 69-year-old woman. Calculated whole-body dose to the surgical staff and surgeons’ fingers is well below the annual limits for exposed workers and the general public. Intraoperative 18F-FCH detection with handheld probe is a safe and feasible method for localizing small parathyroid glands. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.