Table 2.
Characteristics of First Primary Melanoma Cases in the 1973–2004 SEER Registries, by Type of Surgery
| No surgery | Biopsy | Wide Excision | Amputation | Surgery NOS | Total | |
|---|---|---|---|---|---|---|
| n=6,265 | n=47,087 | n=78,520 | n=403 | n=16,643 | ||
| No. (%) | No. (%) | No. (%) | No. (%) | No. (%) | 148,918a | |
| Mean age (SD) at diagnosisb | 60.0 (36.1) | 57.7 (32.7) | 54.6 (22.2) | 62.4 (16.0) | 51.5 (31.7) | 57.2 |
| Sexb | ||||||
| Male | 3,665 (58.5) | 24,894 (52.9) | 41,135 (52.4) | 209 (51.8) | 8,701 (52.3) | 78,604 (52.7) |
| Female | 2,600 (41.5) | 22,193 (47.1) | 37,385 (47.6) | 194 (48.2) | 7,942 (47.7) | 70,314 (47.2) |
| Stageb | ||||||
| In situ | 1,602 (25.6) | 21,793 (46.3) | 20,151 (25.6) | 24 (5.9) | 941 (5.6) | 44,511 (29.8) |
| Local | 1,268 (20.2) | 22,051 (46.8) | 49,764 (63.4) | 155 (38.4) | 10,377 (62.3) | 83,615 (56.1) |
| Regional | 480 (7.6) | 1,625 (3.4) | 6,856 (8.73) | 161(39.9) | 2,784 (16.7) | 11,906 (8.0) |
| Distant | 1,793 (28.6) | 541 (1.1) | 533 (.68) | 48 (11.9) | 1,026 (6.1) | 3,941 (2.6) |
| Unknown | 1,122 (17.9) | 1,077 (2.2) | 1,216 (1.5) | 15 (3.7) | 1,515 (9.1) | 4,945 (3.3) |
| Anatomic siteb | ||||||
| Trunk | 1,109 (17.7) | 14,037 (29.8) | 26,321 (33.5) | 17 (4.2) | 5,104 (30.6) | 46,588 (31.3) |
| Upper extremity | 810 (12.9) | 10,805 (23.0) | 19,059 (24.2) | 112 (27.8) | 3,719 (22.3) | 34,505 (23.1) |
| Lower extremity | 708 (11.3) | 7,746 (16.4) | 16,341 (20.8) | 234–58.1) | 3,455 (20.8) | 28,484 (19.1) |
| Skin, NOS | 2,487 (39.7) | 794 (1.7) | 398 (.51) | 7 (1.74) | 1,303 (7.8) | 4,989 (3.3) |
| Head and Neck | 1,151 (18.4) | 13,705 (29.1) | 16,401 (20.9) | 33 (8.2) | 3,062 (18.4) | 34,352 (23.1) |
| Histologic Subtypeb | ||||||
| In situ | 1,025 (16.6) | 13,632 (28.9) | 14,491 (18.4) | 22 (5.4) | 422 (2.5) | 29,592 (19.9) |
| MM | 3,757 (60.0) | 11,763 (25.0) | 27,284 (34.7) | 210 (52.1) | 8,315 (50.0) | 51,329 (34.5) |
| NM | 100 (1.6) | 1,477 (3.1) | 4,796 (6.1) | 40 (10.0) | 2,105 (12.6) | 8,515 (5.7) |
| LMM | 711 (11.3) | 10,170 (21.6) | 8,492 (10.8) | 8 (2.0) | 1,090 (6.5) | 20,471 (13.8) |
| SSM | 651 (10.4) | 9,890 (21.0) | 22,74 (29.0) | 37 (9.2) | 4,656 (28.0) | 38,008 (25.5) |
| ALM | 21 (.34) | 155 (.33) | 683 (.87) | 86 (21.3) | 55 (.33) | 1,000 (.67) |
Abbreviations: SEER= Surveillance Epidemiology End Results, MM = malignant melanoma, NM = nodular melanoma, LMM = lentigo maligna melanoma, SSM = superficial spreading melanoma, ALM = acral lentiginous melanoma
a
We did not include 2236 patients since their type of surgery was “unknown”.
b
P < 0.0001