| Surgical treatment | Effective | Percentage |
| Right Loboisthmectomy | 3 | 10.0 |
| Left Loboisthmectomy | 5 | 16.7 |
| Subtotal thyroidectomy | 7 | 23.3 |
| Total thyroidectomy | 15 | 50.0 |
| Total | 30 | 100.0 |