Table 1.
Nodule histology and tumor stage. All samples were verified by histology
| Histology | N | Tumor status1 | Tumor stage1 | Male/female | Mean age (range), years |
|---|---|---|---|---|---|
| Benign | 76 | na | na | 18/58 | 51.1 (24–75) |
| No nodule | 4 | na | na | 0/4 | 49.3 (38–60) |
| Hyperplastic nodule | 43 | na | na | 10/33 | 54.8 (30–75) |
| Adenoma | 29 | na | na | 8/21 | 45.9 (24–67) |
| Malignant | 47 | T1 n = 25 | 13/34 | 44.6 (18–89) | |
| T2 n = 8 | |||||
| T3 n = 2 | |||||
| T4 n = 11, na = 1 | |||||
| Papillary carcinoma | 37 | T1 n = 22 | Stage I n = 33 | 11/26 | 42.5 (18–67) |
| T2 n = 7 | Stage II n = 2 | ||||
| T3 n = 1 | Stage III n = 1 | ||||
| T4 n = 7 | Stage IV n = 1 | ||||
| Follicular carcinoma | 3 | T1 n = 2 | Stage I n = 3 | 0/3 | 51 (21–53) |
| T3 n = 1 | |||||
| Poorly differentiated cancer | 1 | T1 n = 1 | Stage I n = 1 | 0/1 | 42 |
| Anaplastic carcinoma | 2 | T4 n = 2 | Stage IV n = 2 | 2/0 | 69.5 (57–82) |
| Medullary carcinoma | 2 | T2 n = 1 | Stage II n = 1 | 0/2 | 65.5 (32–89) |
| T4 n = 1 | Stage IV n = 1 | ||||
| B-cell lymphoma | 1 | na | Stage II n = 1 | 0/1 | 49 |
| Parathyroid carcinoma | 1 | T4 n = 1 | Stage IV n = 1 | 0/1 | 54 |
|
| |||||
| Total | 123 | ||||
na, not applicable.
1
TNM, Classification of Malignant Tumors (ref. [20]).