Table 1. Clinical Characteristics of Patients.
| Characteristic | No. (%) | Melanotic Macules vs Melanomas, P Value | ||
|---|---|---|---|---|
| Group 1 | Group 2 | |||
| Normal Lips (n = 10) |
Melanotic Macules (n = 16) |
Melanomasa (n = 6) |
||
| Age, mean (SD), y | 34.5 (6.1) | 49.6 (17.9) | 56.2 (15.5) | .46 |
| Sex | ||||
| Male | 3 (30) | 3 (19) | 2 (40) | .55 |
| Female | 7 (70) | 13 (81) | 3 (60) | |
| Localization | ||||
| Upper lip | 0 | 1 (6) | 5 (83) | .001 |
| Lower lip | 10 (100) | 15 (94) | 1 (17) | |
| Anatomic areab | .009 | |||
| Skin/vermillion | 0 (0) | 2 (33) | ||
| Vermillion | 7 (44) | 2 (33) | ||
| Vermillion/inner mucosae | 8 (50) | 0 | ||
| Inner mucosae | 1 (6) | 2 (33) | ||
| Personal history of melanoma | .61 | |||
| Yes | 0 | 4 (25) | 3 (50) | |
| No | 10 (100) | 10 (63) | 3 (50) | |
| NA | 0 | 2 (12) | 0 | |
| Family history of melanoma | >.99 | |||
| Yes | 0 | 1 (6) | 0 | |
| No | 10 (100) | 12 (75) | 5 (83) | |
| NA | 3 (19) | 1 (17) | ||
| Phototype | .31 | |||
| 1 | 0 | 2 (12) | 1 (17) | |
| 2 | 3 (30) | 2 (12) | 3 (50) | |
| 3 | 5 (50) | 7 (44) | 1 (17) | |
| 4 | 2 (20) | 1 (6) | 0 | |
| NA | 0 | 4 (25) | 1 (17) | |
Abbreviation: NA, not available.
a
Two cases were primary melanomas (2 patients) and 4 cases were recurrent melanomas (3 patients).
b
In normal lips, the vermillion border, vermillion, and inner mucosae were examined.