What is a nevus spilus?


Nevus spilus showing a large caféau- lait macule with multiple small pigmented lesions.
Fig. 41.6 Nevus spilus showing a large caféau- lait macule with multiple small pigmented lesions.
A nevus spilus is an irregularly shaped, light-brown macule with darkly pigmented macules or papules scattered randomly within the macule (Fig. 41-6). The light areas demonstrate the microscopic changes of a café-au-lait macule, and areas of increased melanin with darker pigmentation show the histology of lentigines or junctional nevi. Rare cases have developed malignant melanomas.

Vaidya DC, Schwartz RA, Janniger CK: Nevus spilus, Cutis 80:465–468, 2007.