Table 2.
Lesion characteristics
| BCH (n = 26) | SCC (n = 37) | |
|---|---|---|
| Number (%) | Number (%) | |
| Location | ||
| Oropharynx | 20 (73) | 14 (38) |
| Posterior wall | 15 (58) | 7 (19) |
| Lateral wall | 3 (8) | 3 (8) |
| Uvula | 1 (4) | 0 (0) |
| Vallecula | 1 (4) | 4 (11) |
| Hypopharynx | 8 (27) | 23 (62) |
| Posterior wall | 5 (15) | 2 (5) |
| Piriform sinus | 3 (12) | 18 (49) |
| Postcricoid area | 0 (0) | 3 (8) |
| Macroscopic type | ||
| Depressed | 0 (0) | 3 (8) |
| Elevated | 7 (19) | 11 (30) |
| Flat | 19 (73) | 23 (62) |
| Mixed with flat and elevated | 2 (8) | 0 (0) |
| Size | ||
| 1–5 mm | 23 (88) | 3 (8) |
| 6–10 mm | 1 (4) | 13 (35) |
| >10 mm | 2 (8) | 18 (49) |
| NA | 3 (8) | |
BCH, basal cell hyperplasia; NA, not available; SCC, squamous cell carcinoma.