Table 1. Clinicopathological Characteristics of Pediatric Patients Who Underwent Total Thyroidectomy for PTC (n=58).
| Characteristics | Value | |
|---|---|---|
| Age (yr) | 15.5±2.5 (6–18) | |
| Sex | ||
| Male | 11 (19.0) | |
| Female | 47 (81.0) | |
| Primary tumor size (cm) | 2.9±1.7 (0.8–9.8) | |
| Primary tumor size >2 cm | 33 (56.9) | |
| Preoperative ultrasonography finding (n=48) | ||
| Solid parenchyma | 47 (97.9) | |
| Calcifications | 34 (70.8) | |
| Irregular margins | 23 (47.9) | |
| Taller than wide | 3 (6.3) | |
| Hypoechoic | 36 (75.0) | |
| Ipsilateral nodule present | 12 (25.0) | |
| Contralateral nodule present | 28 (37.5) | |
| Final pathology | ||
| PTC, classical | 34 (58.7) | |
| PTC, diffuse sclerosing | 9 (15.5) | |
| PTC, tall cell | 7 (12.1) | |
| PTC, clear cell | 4 (6.9) | |
| PTC, follicular variant | 2 (3.4) | |
| PTC, others* | 2 (3.4) | |
| Multifocality | 17 (29.3) | |
| Bilaterality | 17 (29.3) | |
| Gross ETE | 12 (20.7) | |
| Extent of LN dissection | ||
| Central | 58 (100) | |
| Lateral | 24 (41.4) | |
| LN metastasis | ||
| None | 6 (10.3) | |
| Central | 52 (89.7) | |
| Lateral | 24 (41.4) | |
| Number of retrieved central LN | 13.5±7.3 (1–33) | |
| Number of central LN metastasis | 7.5±5.9 (0–26) | |
| Number of retrieved lateral LN | 61.8±34.3 (20–151) | |
| Number of lateral LN metastasis | 15.2±8.8 (3–37) | |
| Structural recurrence | 19 (32.8) | |
| Period of no evidence of disease (months) | 102.1±64.7 (12–289) | |
| Follow up duration (months) | 134.8±61.7 (15–291) | |
PTC, papillary thyroid cancer; ETE, extrathyroidal extension; LN, lymph node.
Data are presented as mean±standard deviation (range) or n (%).
*Others consisted of one columnar cell type and one oncocytic type.