One-step ethanol ablation of viscous cystic thyroid nodules.

Objective: The purpose of this study was to evaluate the efficacy and safety of one-step ethanol ablation in the management of viscous cystic thyroid nodules.

Materials And Methods: Viscous cystic thyroid nodules are defined as nodules that cannot be aspirated with an 18-gauge needle. Nine euthyroid patients underwent one-step ethanol ablation of benign single compressive viscous cystic thyroid nodules (cystic portion > 90%).

Radiofrequency ablation of benign thyroid nodules: safety and imaging follow-up in 236 patients.

This study evaluated the safety and volume reduction of ultrasonography (US)-guided radiofrequency ablation (RFA) for benign thyroid nodules, and the factors affecting the results obtained. A total of 302 benign thyroid nodules in 236 euthyroid patients underwent RFA between June 2002 and January 2005. RFA was carried out using an internally cooled electrode under local anesthesia.