Jia Yang, Zhongkuan Ge, Jin Xu, Xingchen Ding and Man Hu*
Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, ChinaFulltext PDF
Ectopic thyroid is an abnormal thyroid gland embryogenesis; the thyroid is not in the normal position of the neck but appears in other parts. About 90% of the ectopic thyroid is located at the base of the tongue. This case showed a mass in the right supraclavicular region, which initially diagnosed as metastatic Lymph Node (LN) on CT and MRI in a nasopharyngeal carcinoma patient. While, this mass had no FDG uptake through 18F-FDG PET/CT imaging, and it was a finally confirmed as ectopic thyroid tissue pathologically using needle biopsy. We emphasis the important role of 18F-FDG PET/CT for confirming and excluding lymph node metastasis.
Ectopic thyroid; 18F-FDG PET/CT; Lymph node metastasis; Nasopharyngeal carcinoma
Yang J, Ge Z, Xu J, Ding X, Hu M. A Rare Case of Ectopic Thyroid from a Nasopharyngeal Carcinoma Patient Diagnosing with 18F-FDG PET/CT. Ann Clin Case Rep. 2021; 6: 2041..