From: The expression of stromal biomarkers in small papillary thyroid carcinomas
 | pT1N0 non-metastatic tumors (N = 25) | pT1N1b metastatic tumors (N = 19) | |
---|---|---|---|
Mean average age at diagnosis years (range) | 58.9 (26–84) | 53.7 (28–79) | |
Gender (female/male) | 23/2 | 12/7 | |
Mean tumor size mm (range) | 11.4 (1.6–20) | 10.3 (1.3–20) | |
Growth pattern | Purely papillary | 23/25 | 19/19 |
Follicular variant | 2/25 | 0/19 | |
Multifocality | 5/25 | 3/19 | |
Average number of metastastic lymph nodesa | - | 9 (1–26) |