PT - JOURNAL ARTICLE AU - Palot Manzil, Fathima Fijula AU - Eichhorn, Joshua AU - Vattoth, Surjith TI - Synchronous Ectopic Thyroid Gland and Ectopic Parathyroid Adenoma on <sup>99m</sup>Tc-Sestamibi Scintigraphy and Correlative Imaging AID - 10.2967/jnmt.122.265249 DP - 2023 Jun 14 TA - Journal of Nuclear Medicine Technology PG - jnmt.122.265249 4099 - http://tech.snmjournals.org/content/early/2023/06/14/jnmt.122.265249.short 4100 - http://tech.snmjournals.org/content/early/2023/06/14/jnmt.122.265249.full AB - 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.