TABLE 2.
The classification of histopathologic subtypes of 28,593 melanoma samples in this study
| Histopathologic subtypes | Cases (%) |
|---|---|
| Malignant melanoma | 11 456 (40.1) |
| Superficial spreading melanoma | 8144 (28.5) |
| Nodular melanoma | 5571 (19.5) |
| Acral lentiginous melanoma, malignant | 703 (2.5) |
| Lentigo maligna melanoma | 691 (2.4) |
| Spindle cell melanoma | 684 (2.4) |
| Desmoplastic melanoma, malignant | 623 (2.2) |
| Amelanotic melanoma | 166 (0.6) |
| Mixed epithelioid and spindle cell melanoma | 128 (0.4) |
| Epithelioid cell melanoma | 125 (0.4) |
| Malignant melanoma, regressing | 90 (0.3) |
| Balloon cell melanoma | 12 (0.0) |
| Malignant melanoma in giant pigmented nevus | 125 (0.4) |
| Malignant melanoma in junctional nevus | 64 (0.2) |
| Blue nevus, malignant | 10 (0.0) |
| Malignant melanoma in precancerous melanosis | 1 (0.0) |