Table 2.

Tumor characteristics.

Patient	TNM stage	Margin	Surgery	Nodal dissection	Survival (months)
1	T4aN0M1	Negative	Total thyroidectomy	Yes	21.9
2	T4aN0M0	Positive	Total thyroidectomy	Yes	23.6
3	T4aN0M0	N/A	None	No	14.2
4	T4aN1aM1	Gross residual disease	Partial thyroidectomy	No	4.7
5	T4aN1bM0	Gross residual disease	Partial thyroidectomy	Yes	2.3
6	T4bN0M0	Negative	Total thyroidectomy	Yes	24.0
7	T4aN1bM1	Gross residual disease	Partial thyroidectomy	No	9.3
8	T4bN1bM1	Positive	Total thyroidectomy	Yes	5.8
9	T4aN1bM0	Positive	Total thyroidectomy	Yes	10.0
10	T4aN1bM1	Positive	Total thyroidectomy	Yes	6.5
11	T4aN1bM0	Positive	Partial thyroidectomy	Yes	23.3
12	T4aN1aM1	N/A	None	No	6.2
13	T4aN0M0	Negative	Total thyroidectomy	No	17.8∗
14	T4aN1bM0	Positive	Total thyroidectomy	Yes	4.4
15	T4bN0M0	Positive	Total thyroidectomy	Yes	7.9
16	T4aN1aM1	N/A	None	No	3.8∗
17	T4aN0M1	Negative	Total thyroidectomy	Yes	16.1∗

^*Date of last follow-up.