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©2013 UpToDate ® Print Email Acral lentiginous melanoma in situ Acral lentiginous melanoma in situ on the left index finger of a 74-year-old man, presenting as a linear pigmented streak (melanonychia striata) with Hutchinson sign (pigmentation of the proximal and lateral nail folds). Subungual acral lentiginous melanoma Melanoma originating from the nail matrix. An area of hyperpigmentation of the proximal nail fold (Hutchinson sign) is present. Reproduced with permission from: www.visualdx.com. Copyright Logical Images, Inc.
©2013 UpToDate ® Print Email Acral lentiginous melanoma in situ Acral lentiginous melanoma in situ on the left index finger of a 74-year-old man, presenting as a linear pigmented streak (melanonychia striata) with Hutchinson sign (pigmentation of the proximal and lateral nail folds).