Table 1.
Patient and tumor characteristics of patients with pediatric CM cutaneous melanoma
| Characteristic | No. (%)a |
|---|---|
| Age at diagnosis (years) | |
| Mean (SD) | 12.55 (4.02) |
| Median (range) | 13 (2, 21) |
| Sex | |
| Female | 14 (42%) |
| Male | 19 (58%) |
| Race | |
| White | 33 (100%) |
| Histology subtypes | |
| Acral lentiginous | 1 (3%) |
| Folliculocentric | 1 (3%) |
| Nevoid | 4 (12%) |
| Nodular | 8 (24%) |
| Pigment synthesizing | 1 (3%) |
| Superficial spreading | 5 (15%) |
| Unknown | 13 (40%) |
| Primary tumor location | |
| Extremity | 9 (27%) |
| Head or neck | 9 (27%) |
| Trunk | 15 (45%) |
| Tumor depth | |
| T1 | 3 (9%) |
| T2 (1.01–2.00 mm) | 11 (33%) |
| T3 (2.01–4.00 mm) | 9 (27%) |
| T4 (> 4.00 mm) | 10 (30%) |
| Depth (mm) | |
| Mean (SD) | 3.47 (2.54) |
| Median (range) | 2.36 (0.42, 9.4) |
| Ulceration | |
| Yes | 14 (42%) |
| No | 19 (58%) |
| Mitotic counts | |
| Mean | 6.4 (6.49) |
| Median | 4 (0,26) |
| Mitosis | |
| Absence | 3 (9%) |
| Presence | 30 (91%) |
CM conventional melanoma, mm millimeter, N/A not available, SD standard deviation
aValues indicate the number of patients (%), unless otherwise indicated