| Patients (n = 438) |
| Age, y |
|
| Mean (SD) |
46.7 (16.1) |
| Range |
18-85 |
| Sex, No. (%) |
|
| Male |
245 (55.9) |
| Female |
193 (44.1) |
| Race/ethnicity |
|
| White |
292/302 (96.7) |
| African American |
1/302 (0.3) |
| Asian |
2/302 (0.7) |
| Hispanic |
4/302 (1.3) |
| Refused to answer |
3/302 (1.0) |
| History of biopsied dysplastic nevi |
|
| Yes |
192/381 (50.4) |
| No |
189/381 (49.6) |
| History of cutaneous melanoma |
|
| Yes |
145/437 (33.2) |
| No |
292/437 (66.8) |
| Family history of cutaneous melanoma |
|
| Yes |
83/349 (23.8) |
| No |
266/349 (76.2) |
| Development of cutaneous melanoma after biopsy of moderately dysplastic nevi, No. (%) |
|
| Same site |
0 |
| Separate site |
100 (22.8) |
| No |
338 (77.2) |
| Development of cutaneous metastatic melanoma after biopsy of moderately dysplastic nevi, No. (%) |
|
| Yes |
3 (0.7) |
| No |
435 (99.3) |
| Moderately Dysplastic Nevi (n = 467) |
Dysplastic Nevi, No./Total No. (%) |
| Anatomic site |
|
| Head |
20/466 (4.3) |
| Neck |
2/466 (0.4) |
| Upper extremity |
24/466 (5.2) |
| Lower extremity |
80/466 (17.2) |
| Trunk |
324/466 (69.5) |
| Groin or buttocks |
16/466 (3.4) |
| Nevus size, mm (n = 79) |
|
| Mean (SD) |
5.7 (2.5) |
| Range |
2-15 |
| Biopsy type |
|
| Shave |
216/466 (46.4) |
| Punch |
211/466 (45.3) |
| Elliptical excision |
36/466 (7.7) |
| Other |
3/466 (0.6) |
| Degree of atypia, No. (%) |
|
| Mild to moderate |
246 (52.7) |
| Moderate |
221 (47.3) |
| Positive margin location |
|
| Peripheral |
346/385 (89.9) |
| Deep |
14/385 (3.6) |
| Peripheral and deep |
25/385 (6.5) |
| Follow-up, y |
|
| Mean (SD) |
6.9 (3.4) |
| Range |
3.0-21.3 |
| Clinical recurrence of pigmentation |
|
| Yes |
3/251 (1.2) |
| No |
248/251 (98.8) |
