ScintigraphicDetectionofDual.PDF

Scintigraphic Detection of Dual Ectopic Thyroid Tissue: Experience of a Chinese Tertiary Hospital 1* 2 1 1 3 3 4 4 Zhaowei Meng , Shanshan Lou , Jian Tan *, Qiang Jia , Rongxiu Zheng , Geli Liu , Mei Zhu , Qing He , Dong Li5 1 Department of Nuclear Medicine, Tianjin Medical University General Hospital, Tianjin, Tianjin, P. R. China, 2 Department of Mathematics, Statistics and Printing Press, Tianjin Normal University, Tianjin, Tianjin, P. R. China, 3 Department of Pediatrics, Tianjin Medical University General Hospital, Tianjin, Tianjin, P. R. China, 4 Department of Endocrinology, Tianjin Medical University General Hospital, Tianjin, Tianjin, P. R. China, 5 Department of Radiology, Tianjin Medical University General Hospital, Tianjin, Tianjin, P. R. China Abstract Purpose: To assess scintigraphic pattern, clinical indication and relevance of dual ectopic thyroid tissue (ETT). Literature is reviewed for such cases. Methods: In this 5-year retrospective study, we reviewed all thyroid scintigraphies in our data base. Patients diagnosed with suspected ETT were identified. Literature is reviewed. Statistics were done by one-way analysis of variance and least significant difference test. Results: From 11905 thyroid scintigraphies during the 5-year period, we retrieved 121 patients eligible for analysis. The top two indications were assessing a palpable front neck mass to determine whether it was an ETT, and primary hypothyroidism. Patients were divided into 3 groups. Group 1 with single ETT (83 cases); group 2 with dual ETT (6 cases) and group 3 with athyroid (32 cases). Age and thyroid hormones were highest in group 2, and lowest in group 3. Thyrotropin was hig