TABLE III.
Cancer characteristics
| Characteristic | Stage [n (%)] | ||
|---|---|---|---|
|
| |||
| Early | Advanced | Overall | |
| Patients | 43 | 51 | 102a |
|
| |||
| Histology | |||
| Squamous cell carcinoma | 34 (79.1) | 41 (80.4) | 80 (78.4) |
| Other | 9 (20.9) | 10 (19.6) | 22 (21.6) |
|
| |||
| Site | |||
| Oral cavity | 17 (39.5) | 12 (23.5) | 31 (30.4) |
| Oropharynx | 5 (11.6) | 14 (27.5) | 20 (19.6) |
| Salivary glands | 7 (16.3) | 3 (5.9) | 13 (12.7) |
| Larynx | 5 (11.6) | 6 (11.8) | 11 (10.8) |
| Hypopharynx | 0 (0) | 4 (7.8) | 4 (3.9) |
| Nasal cavity or paranasal sinuses | 1 (2.3) | 1 (2.0) | 2 (2) |
| Other | 8 (18.6) | 9 (17.7) | 21 (20.1) |
|
| |||
| AJCC stage | |||
| I | 21 (48.8) | 0 (0) | 21 (20.6) |
| II | 22 (51.2) | 0 (0) | 22 (21.6) |
| III | 0 (0) | 18 (35.3) | 18 (17.6) |
| IV | 0 (0) | 33 (64.7) | 33 (32.4) |
| Unknown | 0 (0) | 0 (0) | 8 (7.8) |
|
| |||
| T Stage | |||
| T1 | 20 (46.5) | 7 (13.7) | 27 (26.5) |
| T2 | 21 (48.8) | 14 (27.5) | 35 (34.3) |
| T3 | 2 (4.7) | 10 (19.6) | 12 (11.8) |
| T4 | 0 (0) | 20 (39.2) | 20 (19.6) |
| Tx | 0 (0) | 0 (0) | 8 (7.8) |
|
| |||
| N Stage | |||
| N0 | 37 (86.0) | 10 (19.6) | 47 (46.1) |
| N1 | 3 (7) | 12 (23.5) | 15 (14.7) |
| N2 | 1 (2.3) | 24 (47.1) | 28 (27.5) |
| N3 | 0 (0) | 3 (5.9) | 3 (2.9) |
| Nx | 2 (4.7) | 2 (3.9) | 9 (8.8) |
|
| |||
| M Stage | |||
| M0 | 36 (83.7) | 41 (80.4) | 77 (75.5) |
| M1 | 0 (0) | 2 (3.9) | 2 (2) |
| Mx | 7 (16.3) | 8 (15.7) | 23 (22.5) |
a
Of 102 total patients, 8 had disease of unknown stage based on American Joint Committee on Cancer criteria. Of 80 patients with squamous cell carcinoma and 22 with “other” histology, 5 and 3 respectively had disease of unknown stage.