Lesion characteristics
| Total Number of Subjects (%) | Number of Subjects with T1–T2 Lesions (%) | |
|---|---|---|
| Histologic type | ||
| Squamous cell carcinoma | 23 (77%) | 8 (80%) |
| Adenoid cystic carcinoma | 4 (13%) | 1 (10%) |
| Adenocarcinoma | 1 (3%) | 1 (10%) |
| Sarcoma | 1 (3%) | |
| Melanoma metastasis | 1 (3%) | |
| Tumor stage | ||
| pT1 | 4 (13%) | 4 (40%) |
| pT2 | 6 (20%) | 6 (60%) |
| pT3 | 1 (3%) | |
| pT4 | 16 (53%) | |
| Lymph node stage | ||
| pN0 | 12 (38%) | |
| pN1 | 5 (17%) | |
| pN2a | 1 (3%) | |
| pN2b | 6 (20%) | |
| pN2c | 1 (3%) | |
| pN3 | 0 | |
| Initial tumor location | ||
| Base of tongue | 1 (3%) | |
| Tongue | 6 (20%) | 2 (20%) |
| Floor of mouth | 4 (13%) | 3 (30%) |
| Vestibule or lip | 2 (7%) | |
| Maxillary | 2 (7%) | |
| Palate | 3 (10%) | |
| Mandibular | 8 (27%) | |
| Amygdala | 1 (3%) | 3 (30%) |
| Salivary glands | 3 (10%) | 2 (20%) |
| Staging | ||
| Initial diagnosis | 23 (77%) | 6 (60%) |
| Recurrence | 7 (23%) | 4 (40%) |