Nevo de Reed: un simulador clínico y dermatoscópico de melanoma

Dermatoscopy is a fast and non-invasive technique, complementary to clinical exploration, that increases the precision in the diagnosis of pigmented skin tumors. Knowledge of the different dermatoscopic patterns will occasionally allow to differentiate between melanoma and a group of skin lesions that may clinically and/or evolutively behave as simulators of melanoma. We present the case of a 32-year-old male that developped a pigmented lesion of recent onset and progressive growth whose dermatoscopic image showed multiple digitiform periferal extensions, making up a starburst pattern suggestive of Reed nevus, but also displaying atypical features that compelled to exclude an incipient melanoma by histological study. We discuss the usefulness of dermatoscopy in the diagnosis of this kind of lesions and the different dermatoscopic patterns that Reed nevus may show.