Table 3.

Characteristics of 42 patients with events at the time of recurrence.

ID	Pre Therapy		12 Months Evaluation				Recurrence
	ATA Risk Category	Tg	Tg	US	Diagnostic WBS Uptake	Response to Therapy	Site	Months	Tg	Treatment
1	Intermediate	184	11	−	TB	BIR	TB	48	70	RAI
2	Intermediate	12	6	−	TB	BIR	TB	32	13	RAI
3	Intermediate	18	53	−	TB	BIR	TB	67	13	RAI
4	Intermediate	72	1.5	−	TB	BIR	TB	19	14	RAI
5	Low	32	1	+	TB	SIR	TB	18	29	RAI
6	High	73	1.4	+	TB	BIR	TB	90	11	RAI
7	Intermediate	36	7	+	TB	IR	TB	10	12	RAI
8	Intermediate	13	1.4	−	TB	IR	TB	17	9.1	RAI
9	Low	41	3	−	TB	IR	TB	17	59	RAI
10	Intermediate	24	0.1	−	TB	ER	TB	15	12	RAI
11	Intermediate	0.5	0.2	−	TB	ER	TB	17	28	RAI
12	Intermediate	51	2	+	TB	SIR	TB and LN	13	7.6	RAI
13	High	36	0.5	−	−	BIR	TB and LN	29	15	RAI
14	Intermediate	1	2	−	−	BIR	TB and LN	13	37	RAI
15	Intermediate	0.5	0.3	−	−	IR	TB and LN	25	8	RAI
16	High	320	11	−	−	IR	TB and LN	26	5.6	RAI
17	High	14	4.5	−	−	IR	Bone	73	330	RAI
18	High	1.1	1.4	−	Thorax	IR	Bone	19	49	RAI
19	High	19	2	−	Thorax	BIR	Lung	60	440	RAI
20	Intermediate	28	8	−	Thorax	BIR	Lung	11	83	RAI
21	High	102	5.2	−	Thorax	BIR	Lung	21	113	RAI
22	High	112	1.2	−	Thorax	IR	Lung	33	62	RAI
23	High	215	0.2	−	Mediastinum	ER	Mediastinal LN	17	30	RAI
24	High	2	4	−	Mediastinum	BIR	Mediastinal LN	16	8	RAI
25	High	67	45	−	Mediastinum	BIR	Paratracheal LN	25	9,7	RAI
26	Intermediate	14	0.7	−	LN	IR	TB and LN	18	4.2	Surgery + RAI
27	High	48	0.1	−	TB	IR	TB and LN	27	1.1	Surgery + RAI
28	High	0.8	0.2	−	LN	ER	LC LN	112	236	Surgery + RAI
29	Intermediate	24	0.1	−	−	ER	LC LN	12	6,1	Surgery + RAI
30	Intermediate	14	1.3	+	−	BIR	LC LN	56	4,7	Surgery + RAI
31	High	13	1.5	−	TB	BIR	LC LN	12	7,1	Surgery + RAI
32	High	64	1.2	+	LN	IR	LC LN	17	6,2	Surgery + RAI
33	High	6	5.1	−	−	BIR	LC LN	30	398	Surgery + RAI
34	High	37	20	−	TB	BIR	LC LN	12	196	Surgery + RAI
35	Intermediate	0.8	10	−	TB	BIR	LC LN	31	5,1	Surgery + RAI
36	High	0.5	2.5	−	−	IR	LC LN	55	2,2	Surgery + RAI
37	High	4	1.1	−	−	IR	LC LN	16	4,1	Surgery + RAI
38	High	3	0.6	−	−	IR	LC LN	32	9	Surgery + RAI
39	Intermediate	31	0.1	+	LN	IR	LC LN	19	10	Surgery + RAI
40	Intermediate	0.5	0.9	−	−	IR	LC LN	86	4,1	Surgery + RAI
41	Intermediate	7	8	−	−	BIR	LC LN	95	4	Surgery + RAI
42	Intermediate	51	0.2	−	TB	ER	LC LN	10	7	Surgery + RAI

Tg (thyroglobulin), TB (thyroid bed), LN (lymph nodes), LC (latero-cervical), RAI (radioactive iodine), US (ultrasound), ER (excellent response), IR (indeterminate response), BIR (biochemical incomplete response) SIR (structural incomplete response); +/−: presence/absence of thyroid residual tissue.