Moles Speckled Lentiginous Nevus
Speckled lentiginous nevus was previously referred to as nevus spilus. It is a common hairless, oval or irregularly shaped brown lesion that is dotted with darker brown-to-black spots. They may appear at any age but usually develop before adulthood and follow a benign persistent course. Lesions can appear at birth or in early infancy as light colored caf?au lait macules. Pigmented macules and papules then develop over a period of months to years. Lesions may be very large. It has been suggested that speckled lentiginous nevus is a subtype of congenital melanocytic nevus. The brown area is usually flat, and the black dots may be slightly elevated and contain typical nevus cells. The spots range from 1 to 3 mm in diameter and may be lentigines, junctional, compound, or intraepidermal nevi. The background hyperpigmentation histologically has the features of a lentigo or caf?au lait macule. There is considerable variation in size, ranging from 1 to 20 cm. The anatomic position or time of onset is not related to sun exposure. Transformation into melanoma is very rare. The risk of transformation may be similar to classic congenital nevi of similar size. Routine excision is not necessary. Biopsy suspicious areas. Speckled lentiginous nevus is flat and necessitates excision and closure if the patient desires removal.