Intravascular extension of papillary thyroid carcinoma to the internal jugular vein: A case report

摘要

INTRODUCTIONPapillary thyroid cancer (PTC) is the most common thyroid malignancy and usually spreads via lymphatic system. PTC can sometimes show microscopic vascular invasion, but rarely causes tumour thrombus in the internal jugular vein (IJV) or other