Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Tumor primary sites
| Primary site | n | % |
|---|---|---|
| Nasal cavity | 6455 | 46.1% |
| Middle ear | 439 | 3.1% |
| Maxillary sinus | 4449 | 31.8% |
| Ethmoid sinus | 1205 | 8.6% |
| Frontal sinus | 152 | 1.1% |
| Sphenoid sinus | 442 | 3.2% |
| Overlapping lesion of accessory sinuses | 281 | 2.0% |
| Accessory sinus, NOS | 570 | 4.1% |
