Journal of the American Academy of Dermatology
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A 58-year-old white man had an enlarging lesion on the sole of the right foot mistakenly diagnosed clinically and histologically as verruca vulgaris. Lack of response to therapy led to a repeat biopsy which showed malignant melanoma, acral lentiginous type, level IV. The lesion was surgically removed, and 11 months later there was no evidence of recurrence. In the differential diagnosis of lesions of the palms and soles, one should include acral lentiginous melanoma, especially if the lesion is pigmented.