| Histopathology | |||||
|
| Frequency | Percent | Valid percent | Cumulative percent | |
| Lymphoid hyperplasia | 53 | 89.8 | 89.8 | 89.8 | |
| Malignant tumor | 3 | 5.1 | 5.1 | 94.9 | |
| Benign tumor | 3 | 5.1 | 5.1 | 100.0 | |
| Total | 59 | 100.0 | 100.0 |
| |