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Lentigo Maligna Melanoma (LMM)

definition

Slow-growing variant of melanoma arising in a premalignant lesion, lentigo maligna, which appears on the sun-exposed skin of elderly people. It has a long preinvasive period. Initially the lentigo maligna is a flat, brown, stain-like lesion. The development of an elevated nodule within the area of pigmentation indicates the change to vertically invasive lentigo maligna melanoma. This variant does not occur in children.

synonyms

Lentigo Maligna Melanoma (LMM), Melanoma, Lentigo Maligna, Melanoma, Lentigo Maligna Malignant

UMLS

lentigo maligna malignant melanoma, malignant melanoma, lentigo maligna malignant, melanoma, lentigo maligna malignant

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