Table 1.
The demographic and clinical characteristics of the patients and the tumors.
| Case Number (n = 17) | |
|---|---|
| Age | 27–80 (mean 56.8 ± 14.2) |
| Sex | M:F = 9:8 |
| Metastatic time | 2 months–18 years and 7 months |
| Symptoms | |
| Epistaxis | 7 |
| Headache | 3 |
| Nasal obstruction | 2 |
| Diplopia | 1 |
| Extraocular movement limitation | 1 |
| Facial swelling | 1 |
| Side | |
| Unilateral (L/R) | 8 (3/5) |
| Bilateral | 7 |
| Sinonasal metastases | |
| Single metastases | 9 |
| Multifocal metastases | 7 |
| Widespread metastasis | 11 |
| Sinonasal metastatic sites | |
| Nasal cavity | 8 |
| Skull base | 6 |
| Nasal septum | 5 |
| Maxillary sinus | 4 |
| Ethmoid sinus | 4 |
| Sphenoid sinus | 4 |
| Frontal sinus | 1 |