Related Experiment Video
Updated: Jan 2, 2026
Transoral Endoscopic Thyroidectomy Vestibular Approach for Thyroid Lobectomy
Published on: May 12, 2023
Ethanol Ablation of Neck Metastases from Differentiated Thyroid Carcinoma
Ricardo Paz-Fumagalli1, Xi Li1,2, Robert C Smallridge3
1Division of Interventional Radiology, Mayo Clinic, Jacksonville, Florida.
Abstract:
Differentiated thyroid cancer often metastasizes to cervical lymph nodes, characteristically with slow growth rate and low-level aggressiveness. Cervical lymph node resection is the treatment of choice, but ethanol ablation offers a therapeutic option for patients with few nodes unresponsive to radioiodine therapy and who are poor surgical candidates. The ethanol ablation procedure is minimally invasive, guided sonographically, easily and safely repeated, and easily implemented with minimal technology and cost. Transient nerve injury is infrequent and virtually the only important complication. Current experience indicates that ethanol ablation has the safest therapeutic profile compared to surgery and thermal ablation, and the effectiveness is comparable to thermal ablation and approaches that of surgery. Well-designed clinical trials are lacking.
Insights
Ethanol ablation is a safe and effective minimally invasive treatment for differentiated thyroid cancer with cervical lymph node metastasis, especially for patients unsuitable for surgery.
Area of Science:
- Oncology
- Endocrinology
- Interventional Radiology
Background:
- Differentiated thyroid cancer frequently metastasizes to cervical lymph nodes.
- Cervical lymph node resection is standard, but alternatives are needed for specific patient groups.
- Radioiodine therapy may be ineffective for some metastatic nodes.
Purpose of the Study:
- To evaluate ethanol ablation as a therapeutic option for cervical lymph node metastases in differentiated thyroid cancer.
- To compare ethanol ablation with existing treatments like surgery and thermal ablation.
Main Methods:
- Sonographically guided ethanol ablation procedure.
- Minimally invasive technique, repeatable with minimal technology and cost.
Main Results:
- Ethanol ablation is minimally invasive, safe, and easily repeatable.
- Transient nerve injury is the primary complication, occurring infrequently.
- Effectiveness is comparable to thermal ablation and approaches surgical outcomes.
- Therapeutic profile is safer than surgery and thermal ablation.
Conclusions:
- Ethanol ablation presents a safe and effective alternative for managing differentiated thyroid cancer cervical lymph node metastases.
- It is particularly suitable for patients with few radioiodine-refractory nodes who are poor surgical candidates.
- Further well-designed clinical trials are needed to solidify its role in treatment algorithms.
