- Malignancy rate in different Bethesda III subcategories.
| Bethesda III Subcategory | Benign (n=97) | Malignant (n=96) | P-value | PTC (n=83) | FTC (n=13) |
|---|---|---|---|---|---|
| Architectural atypia | 44 (49.4%) | 45 (50.6%) | 0.240 | 36 (80.0%) | 9 (20.0%) |
| Cytologic and architectural atypia | 20 (66.7%) | 10 (33.3%) | 7 (70.0%) | 3 (30.0%) | |
| Cytologic atypia | 29 (44.6%) | 36 (55.4%) | 35 (97.2%) | 1 (2.8%) | |
| Hürthle cell AUS | 4 (44.4%) | 5 (55.6%) | 5 (100.0%) | 0 (0.0%) |
PTC: papillary thyroid carcinoma, FTC: follicular thyroid carcinoma, AUS: Atypia of an undetermined significance