AUTHOR=Adnan Zaina , Sabo Edmond , Kassem Sameer TITLE=Metastatic papillary thyroid carcinoma with internal jugular vein tumor thrombus - A case report and review of the literature JOURNAL=Frontiers in Endocrinology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2025.1505800 DOI=10.3389/fendo.2025.1505800 ISSN=1664-2392