Diagnostic, prognostic and therapeutic implications of regional lymph node metastases in differentiated thyroid carcinoma

This thesis offers a detailed analysis of nodal disease characteristics in a large cohort of 3664 differentiated thyroid cancer patients managed at a single quaternary cancer institution. Developments in imaging technology have resulted in increased use of neck ultrasound to detect nodal disease. We demonstrate that preoperative neck ultrasonography has resulted in more comprehensive neck dissections and reduced salvage neck dissections in thyroid cancer. Details of prognostic nodal features are analyzed to stratify outcomes. Lymph node characteristics, particularly presence of extracapsular nodal spread and high lymph node burden are predictors of poorer outcome. Significantly improved nodal recurrence outcomes are reported in a modern cohort of differentiated thyroid cancer patients. The need for risk-stratified and cost-effective surveillance approaches to patients is addressed in the context of increasing thyroid cancer diagnosis around the world.
This is a detailed study of lymph node metastases in thyroid cancer. The increased understating of nodal prognostic features dictates more accurate risk stratification, subsequent individualized management, and more cost-effective long-term surveillance.