- The cytological pattern of thyroid lesions in Najran, Saudi Arabia according to Bethesda guidelines.
| Bethesda diagnostic categories | Pathological diagnosis | n | % | |
|---|---|---|---|---|
| I | Non-diagnostic or unsatisfactory (76 cases, 5.6%) | Inadequate material | 76 | 5.6 |
| II | Benign (981, 72.5%) | Follicular nodule | 535 | 39.5 |
| Colloid nodule | 159 | 11.8 | ||
| Hashimoto’s thyroiditis | 287 | 21.2 | ||
| III | Atypia of undetermined significance or follicular lesion of undetermined significance (32, 2.4%) | Cell atypia | 32 | 2.4 |
| IV | Follicular neoplasms, suspicious follicular neoplasm, or Hürthle cell type (14, 1.0%) | Follicular neoplasms or suspicious follicular neoplasm | 11 | 0.8 |
| Hürthle cell follicular neoplasm | 3 | 0.2 | ||
| V | Suspicious for malignancy (107, 7.9%) | Suspicious for malignancy | 107 | 7.9 |
| VI | Malignancy (143, 10.6%) | Papillary carcinoma | 138 | 10.2 |
| Anaplastic carcinoma | 5 | 0.4 | ||
| Total | 1353 | 100 |