Acral lentiginous melanoma

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 Author(s): Lauren Fried
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Below are dermoscopic features commonly associated with the diagnosis “Acral lentiginous melanoma”.[1] The example images have been approved by a panel of experts as representative of each given feature.

For a more in-depth discussion of associated features, please see the Dermoscopedia page for “Palms and Soles”.

Parallel ridge pattern[edit]

Linear pigmentation of the ridges.[2]

Irregular diffuse pigmentation[edit]

Pigmented blotches of various shades of brown observed in some portions of the lesion.[3]

Multicomponent pattern[edit]

Abrupt edge, diffuse pigmentation, peripheral irregular globules and dots, multiple colors, atypical streaks in combination with localized areas exhibiting benign patterns (fibrillar, parallel furrow or lattice-like).[4]

Atypical fibrillar pattern[edit]