Table 2.
Selected specimen and tumor characteristics of the sample (N = 154).
| Characteristic | Number of cases* | Value = N (%) |
|---|---|---|
| Specimen | ||
| Specimen type | 152 | |
| Biopsy | 52 (34.2) | |
| Resection | 100 (65.8) | |
| Tumor | ||
| Location of primary tumor (detailed) | 154 | |
| Border of tongue | 77 (50) | |
| Floor of mouth/ventral tongue | 7 (4.5) | |
| Buccal mucosa/buccal sulcus | 47 (30.5) | |
| Soft palate/tonsil area | 5 (3.2) | |
| Alveolar mucosa/gingiva/retro molar area | 4 (2.6) | |
| Lower lip | 7 (4.5) | |
| Buccogingival | 3 (1.9) | |
| Maxillary sinus and hard palate | 1 (0.6) | |
| Tongue base, floor of mouth and epiglottis | 3 (1.9) | |
| Location of the primary tumor (groups) | 154 | |
| Buccal mucosa and palate | 59 [38.3) | |
| Tongue | 82 [53.2) | |
| Lip | 7 [4.5) | |
| Floor of mouth and maxilla | 6 [3.9) | |
| Depth of invasion (Ma ± SDb, mm) | 8.799 ± 6.2 | |
| Depth of invasion (MEDc ± SDb, mm) | 7 ± 6.2 | |
| Pathological staging (pTN)d | 102 | |
| Histological grading | 154 | |
| Grade 1 | 45 (29.2) | |
| Grade 2 | 77 (50) | |
| Grade 3 | 32 (20.8) | |
| Lymphovascular invasione | 100 | |
| Yes | 13 (13) | |
| No | 87 (87) | |
| Perineural invasione | 109 | |
| Yes | 42 (38.5) | |
| No | 67 (61.5) | |
| Dysplasia | 153 | |
| Yes | 21 (13.7) | |
| No | 132 (86.3) | |
| Surgical marginsd | 104 | |
| Positive | 11 (10.6) | |
| Negative | 39 (37.5) | |
| Close | 54 (51.9) | |
| Tumor bed margind | 97 | |
| Not submitted | 15 (15.5) | |
| Submitted positive | 1 (1) | |
| Submitted negative | 81 (83.5) | |
| Histological variants of OSCCf | 154 | |
| Conventional | 150 (97.4) | |
| Verrucous | 1 (0.6) | |
| Basaloid | 1 (0.6) | |
| Keratoacanthoma-like variant | 1 (0.6) | |
| Hybrid (verrucous with conventional) | 1 (0.6) | |
| Follow up (Ma ± SDb, years) | 100 | 2.38 ± 1.86 |
| Recurrenced | 103 | |
| Yes | 12 (11.7) | |
| No | 49 (47.6) | |
| Unknowng | 42 (40.8) | |
*Number of cases with data available for analysis.
a
Mean.
b
Standard Deviation.
c
Median.
d
For resection specimens only.
e
Only for cases for which data was available.
f
Oral Squamous Cell Carcinoma.
g
Patients who were followed for < 3 years or died < 3 years after surgery with cause of death unavailable.