In addition to nuclear cardiac and breast imaging, 99mTc-sestamibi scintigraphy is often used to localize parathyroid adenomas. 18F- fluorodeoxyglucose (FDG) PET is heavily utilized in oncology, although its use in identifying parathyroid adenomas is limited. We describe a case of a 57-year-old woman who underwent parathyroid scintigraphy and 18F-FDG PET/CT in the same week due to hyperparathyroidism and an enlarging breast mass, respectively. A right paratracheal mediastinal mass that otherwise would be suspicious for nodal metastases by CT alone was correctly identified to be an ectopic parathyroid adenoma using a combination of the nuclear medicine studies performed.
From the *University of Michigan Medical School;
†Department of Radiology, University of Michigan; and
‡Nuclear Medicine Service, VA Medical Center, Ann Arbor, MI.
Received for publication August 12, 2018; revision accepted October 6, 2018.
Conflicts of interest and sources of fundings: none declared.
Correspondence to: Daniel J. Wale, DO, 2215 Fuller Rd, D748, Ann Arbor, MI 48105. E-mail: firstname.lastname@example.org.