Table 1.
Clinicopathological features of all thyroid carcinoma patients
| Characteristics | PTC (n=477) |
FTC (n=81) |
|||
|---|---|---|---|---|---|
| n | % | n | % | ||
| Gender | |||||
| Male | 145 | 30.4 | 23 | 28.4 | |
| Female | 332 | 69.6 | 58 | 71.6 | |
| Male: female ratio | 01:02.2 | 01:02.5 | |||
| Patients’ age (years) | |||||
| <45 | 284 | 59.5 | 37 | 45.7 | |
| ≥45 | 193 | 40.5 | 44 | 54.3 | |
| Median in years (range) | 40 (8-71) | 40 (21-72) | |||
| Primary tumor size (cm) | |||||
| ≤1 | 57 | 11.9 | 2 | 2.5 | |
| >1 and ≤2 | 110 | 23.1 | 7 | 8.6 | |
| >2 and ≤4 | 223 | 46.8 | 37 | 45.7 | |
| >4 | 87 | 18.2 | 35 | 43.2 | |
| Lymph node status | |||||
| N0 | 302 | 63.3 | 75 | 92.6 | |
| N1 | 175 | 36.7 | 6 | 7.4 | |
| Development of DM | |||||
| No | 456 | 95.6 | 59 | 72.8 | |
| Positive | 21 | 4.4 | 22 | 27.2 | |
| Extrathyroid extension | |||||
| No | 444 | 93.1 | 77 | 95.1 | |
| Probable | 33 | 6.9 | 4 | 4.9 | |
| Multifocality | |||||
| No | 440 | 92.2 | 78 | 96.3 | |
| Yes | 37 | 7.8 | 3 | 3.7 | |
| Subtypes of PTC/FTC | |||||
| Classic/classic | 331 | 69.4 | 58 | 71.6 | |
| Follicular/Hürthle cell carcinoma | 133 | 27.9 | 23 | 28.4 | |
| Others* | 13 | 2.7 | – | – | |
| Degree of invasion | |||||
| Minimally invasive | – | – | 48 | 59.3 | |
| Widely invasive | 33 | 40.7 | |||
*, Including encapsulated tall and columnar cell variants. DM, distant metastasis; PTC, papillary thyroid carcinoma; FTC, follicular thyroid carcinoma.