Table 2.
The topographic sites, pathology, and treatment outcomes of different subsites (n = 84) of oral leukoplakia treated by carbon dioxide laser in the 69 elderly patients
| Buccal | Retromolar | Gum | Labial | Hard palate | Mouth floor | Tongue | Total | |
|---|---|---|---|---|---|---|---|---|
| The number of lesions | 54 | 7 | 5 | 4 | 1 | 1 | 12 | 84 |
| Morphology | ||||||||
| Homogeneous | 26 | 3 | 3 | 1 | 1 | 1 | 7 | 42 |
| Non‐homogeneous | 28 | 4 | 2 | 3 | 0 | 0 | 5 | 42 |
| Speckled type | 19 | 4 | 2 | 3 | 0 | 0 | 3 | 31 |
| Nodular type | 8 | 0 | 0 | 0 | 0 | 0 | 1 | 9 |
| Verruciform type | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
| Pathology | ||||||||
| Squamous hyperplasia | 14 | 1 | 1 | 2 | 1 | 1 | 2 | 22 |
| Mild dysplasia | 25 | 5 | 3 | 0 | 0 | 0 | 6 | 39 |
| Moderate dysplasia | 10 | 0 | 1 | 1 | 0 | 0 | 2 | 14 |
| Severe dysplasia/carcinoma in situ | 5 | 1 | 0 | 1 | 0 | 0 | 2 | 9 |
| Postoperative recurrence | 21 | 1 | 1 | 0 | 0 | 0 | 3 | 26a |
| Malignant transformation | 4 | 1 | 0 | 1 | 0 | 0 | 2 | 8 |
a
There were two patients with more than one site of postoperative recurrence, so the number of recurrent lesions were 26 but the patients with postoperative recurrence were 23.