99mTc-sestamibi scintigraphy localizes parathyroid adenoma as a persistent focus of uptake on delayed images, whereas thyroid glands in normal or ectopic locations are seen on only early images and wash out on delayed images. We report a case of absence of eutopic neck thyroid activity and synchronous ectopic lingual thyroid and mediastinal parathyroid adenoma on scintigraphy confirmed with CT.
Keywords: 4-D CT; ectopic parathyroid; lingual thyroid; sestamibi.
© 2023 by the Society of Nuclear Medicine and Molecular Imaging.