Table 1.
Patient Characteristics
| Characteristic | No. of patients (%) |
|---|---|
| Age (years), Median (range) | 55 (20–73) |
| Gender, Female;Male | 8/23 (35);15/23 (65) |
| Presenting diagnosis | |
| Primary Diagnosis | 20/23 (87) |
| Recurrent Disease | 3/23 (13) |
| Presenting symptom | |
| Pain | 8/23 (35) |
| Epistaxis | 7/23 (30) |
| Nasal obstruction | 6/23 (26) |
| Headaches | 5/23 (22) |
| Primary tumor site | |
| Maxillary sinus | 12/23 (52) |
| Nasal cavity | 8/23 (35) |
| Ethmoid sinus | 2/23 (9) |
| Sphenoid sinus | 1/23 (4) |
| Clinical TNM classification | |
| T1 | 1/23 (4) |
| T2 | 1/23 (4) |
| T3 | 8/23 (35) |
| T4 | 13/23 (57) |
| N0 | 22/23 (96) |
| N1 | 1/23 (4) |
| M0 | 23/23 (100) |
| Histology | |
| Tubular | 4/23 (17) |
| Cribriform | 14/23 (61) |
| Solid | 5/23 (22) |
| Perineural Invasion | |
| Yes | 18/23 (78) |
| No | 5/23 (22) |