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| Type of tissue Type of lesion | Epithelium | Lamina propria | Blood vessel | Salivary gland duct | Muscle layer |
| Normal tissue | 12 (14.6%) | 10 (3.8%) | 2 | 0 | 0 |
| Ulcerative/Inflammatory Lesions | 85 (32.7%) | 35 (13.4%) | 7 | 9 | 1 |
| SCC | 67 (25.6%) | 32 (12.3%) | 7 | 1 | 0 |
| Lymphoma | 17 (6.5%) | 10 (3.8%) | 3 | 1 | 0 |
