Table 1.
Demographics and characteristics in the 86 patients.
| Items | |
|---|---|
| Age (mean ± SD, years) | 53.1 ± 11.8 (range, 7–76) |
| Sex | Female: male = 53 (61.6): 33 (38.4) |
| Type of thyroid surgery | |
| Total thyroidectomy | 78 (90.7) |
| Hemithyroidectomy | 7 (8.1) |
| Subtotal thyroidectomy | 1 (1.2) |
| Size of primary MTC (mean ± SD, mm) | 16.9 ± 13.7 (range, 3–88.6) |
| Location of primary MTC | |
| Right | 59 (68.6) |
| Left | 26 (30.2) |
| Isthmus | 1 (1.2) |
| T stage | |
| T1a | 22 (25.6) |
| T1b | 29 (33.7) |
| T2 | 10 (11.6) |
| T3 | 25 (29.1) |
| T4a | 0 |
| N stage | |
| Nx (unknown) | 3 (3.5) |
| N0 | 38 (44.2) |
| N1a | 20 (23.3) |
| N1b | 25 (29.1) |
| M stage | |
| Mx (unknown) | 15 (17.4) |
| M0 | 70 (81.4) |
| M1 | 1 (1.2) |
| Multiplicity/bilaterality | |
| Solitary | 70 (81.4) |
| Satellite MTC in the ipsilateral lobe | 6 (7.0) |
| Satellite MTC in the contralateral lobe | 1 (1.2) |
| Satellite MTC in both lobes | 9 (10.5) |
| Interval of the last follow-up US (mean ± SD, months) | 78.6 ± 24.9 (range, 23–141) |
| Session number of the last follow-up US | 7.0 ± 3.3 (range, 1–18) |
Data presented in parentheses are percentage of each item.
MTC, medullary thyroid carcinoma.