Table 1:
Distribution of Treatment Suggestions for Melanoma In Situ and Invasive Melanoma Case Diagnoses by Pathologist Characteristics
| Melanoma in situ treatment suggestion | IM treatment suggestiona | |||||
|---|---|---|---|---|---|---|
| excision | excision | Excision | excision | Excision | ||
| < 0.5cm | 0.5-<1cmb | ≥ 1cm | < 1cm | ≥ 1cmb | ||
| No. case readings | 111 | 665 | 137 | 438 | 2711 | |
|
| ||||||
| Affiliation with academic medical center | ||||||
| No | 2833 | 80 (13%) | 449 (72%) | 96 (15%) | 339 (15%) | 1869 (85%) |
| Yes | 1229 | 31 (11 %) | 216 (75%) | 41 (14%) | 99 (11 %) | 842 (89%) |
| Fellowship or board certified in dermatopathology | ||||||
| No | 2308 | 89 (17%) | 330 (62%) | 114 (21%) | 328 (18%) | 1447 (82%) |
| Yes | 1754 | 22 (6%) | 335 (88%) | 23 (6%) | 110 (8%) | 1264 (92%) |
| Years interpreting melanocytic skin lesions | ||||||
| < 10 years | 1583 | 19 (6%) | 273 (80%) | 50 (15%) | 56 (5%) | 1185 (95%) |
| 10 years + | 2479 | 92 (16%) | 392 (69%) | 87 (15%) | 382 (20%) | 1526 (80%) |
| Percent of caseload represented by melanocytic skin lesions | ||||||
| < 10 percent | 1581 | 62 (17%) | 219 (61%) | 76 (21 %) | 250 (20%) | 974 (80%) |
| ≥ 10 percent | 2481 | 49 (9%) | 446 (80%) | 61 (11 %) | 188 (10%) | 1737 (90%) |
a.
IM=invasive melanoma
b.
NCCN guidelines for surgical margins for primary melanoma (exceptions to these guidelines exist for both melanoma in situ and invasive melanoma).