Table 2.
Histologic outcome based on worst preceding FNA diagnosis.
| Malignant | Suspicious for malignancy | Follicular Neoplasm | AUS | Total | |
|---|---|---|---|---|---|
| PTC | 188 (94.9) | 182 (79.5) | 52 (27.4) | 52 (28.3) | 474 (59.2) |
| FTC | 0 (0.0) | 2 (0.9) | 27 (14.2) | 8 (4.3) | 37 (4.6) |
| MTC | 6 (3.0) | 0 (0.0) | 1 (0.5) | 0 (0.0) | 7 (0.9) |
| PDCar | 1 (0.5) | 2 (0.9) | 4 (2.1) | 0 (0.0) | 7 (0.9) |
| ANA | 1 (0.5) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (0.1) |
| Benign | 2 (1.0) | 40 (17.5) | 104 (54.7) | 123 (66.8) | 269 (33.6) |
| FNUMP | 0 (0.0) | 0 (0.0) | 2 (1.1) | 0 (0.0) | 2 (0.2) |
| HTT | 0 (0.0) | 1 (0.4) | 0 (0.0) | 0 (0.0) | 1 (0.1) |
| Lymphoma | 0 (0.0) | 2 (0.9) | 0 (0.0) | 1 (0.5) | 3 (0.4) |
| Total | 198 (100) | 229 (100) | 190 (100) | 184 (100) | 801 (100) |
Values expressed as number with percent of total following in parentheses. PTC: papillary thyroid carcinoma, FTC: follicular thyroid carcinoma, MTC: medullary thyroid carcinoma, PDCar: poorly differentiated carcinoma, ANA: anaplastic/undifferentiated thyroid carcinoma, FNUMP: Follicular neoplasm of uncertain malignant potential, HTT: hyalinizing trabecular tumor.