Retrospective Analysis of the Efficacy and Safety of Ultrasound-Guided Radiofrequency Ablation in the Treatment of Papillary Thyroid Microcarcinoma: A Follow-Up Study of Continuous Postoperative Surveillance and Large-Sample Data

Table 4

Disease progression after RFA in the 358 patients with unifocal PTMC.

Follow-up period	Local recurrence	New tumor	Lymph node metastasis	Distant metastasis	Death caused by PTMC
1 month	0	0	0	0	0
3 months	0	0	0	0	0
6 months	0	0	0	0	0
12 months	0	0	0	0	0
18 months	0	0	0	0	0
24 months	0	0	0	0	0