Radiofrequency Ablation of Low Risk Papillary Thyroid Microcarcinoma

Inclusion Criteria: * who agrees to the consent form * aged from 19 to 60 years old * who has been diagnosed with Bethesda category V or VI by fine needle aspiration or needle biopsy * whose thyroid cancer is 1 cm or smaller than 1 cm length * who does not have lymph node or distant metastasis * whose thyroid cancer does not have extrathyroidal extension * in whom it seems technically possible to completely ablate thyroid cancer using RF Exclusion Criteria: * who cannot routinely followed up according to the study schedule * who has been with Bethesda category I, II, III, or IV by fine needle aspiration or needle biopsy. * who has hyperthyroidism that requires treatment * who has bleeding tendency * multifocal papillary thyroid microcarcinoma * who is pregnant