Table 6. . Lentigo maligna score to distinguish benign pigmented macules from lentigo maligna and lentigo maligna melanoma.
Criteria type | RCM feature | Point(s) |
---|---|---|
Major criteria | Nonedged dermal papillae | +2 |
Large round pagetoid cells | +2 | |
Minor criteria | Nucleated cells in the dermal papillae | +1 |
Atypical cells at the DEJ | +1 | |
Adnexal spread of atypical cells | +1 | |
Broadened honeycomb pattern | -1 |
DEJ: Dermoepidermal junction; RCM: Reflectance confocal microscopy.