acral lentiginous melanoma


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ac·ral len·tig·i·nous mel·a·no·ma

a form of malignant lentigo melanoma that occurs in palms, soles, and subungual areas.

acral lentiginous melanoma

A rare, flat, palmoplantar, subungual or intraoral (malignant) melanoma, which is more common in non-caucasians (it is the most common melanoma in Blacks and Asians); average 5-year survival < 50%; ALMs are unrelated to sun exposure, but may be related to ectopic pigmentation.

acral lentiginous melanoma

A rare, flat, palmoplantar or subungual melanoma, more common in non-whites, average 5-yr survival < 50%, unrelated to actinic exposure, but possibly related to ectopic pigmentation. See Melanoma.

acral lentiginous melanoma

aggressive (malignant) melanoma more common in black than white races, presenting as a flat pigmented lesion that gradually increases in size and becomes nodular
References in periodicals archive ?
The case study documented the successful treatment of Acral Lentiginous Melanoma on a 77-year-old woman with Tubercin.
The term acral lentiginous melanoma (ALM), coined by Reed in 1976, applies to melanoma developing on palms, soles, and nail apparatus, which presents with clinical, histologic, and even biologic differences from melanoma developing elsewhere in the body.
2,5,9) For example, there is some evidence that nodular melanoma and acral lentiginous melanoma have a worse prognosis than other subtypes.
While 1 study noted a possibly increased rate of S100-negative lesions among acral lentiginous melanomas (34) and our study reports 2 S100-negative lesions arising in acral lentiginous or amelanotic melanomas, most of our S100-negative lesions arose in superficial spreading or nodular melanomas.