Figure 1

A) Dermoscopic appearance of the malignant combined nevus showing a multicomponent pattern made up of an homogeneous central steel or blu-gray pigmentation with an irregular border surrounded by an atypical brown pigment network. B) Microscopical appearance of the pigmented lesion showing features of a combined malignant naevus (blue naevus + melanoma), composed of a malignant melanoma, superficial Clark's level III invasion, arising in association with a blue naevus in the deep dermis (Haematoxylin and Eosin, original magnification × 5). C) A detail at greater magnification of figure 1B, showing the invasion of the epidermis by the neoplastic melanocytes (Haematoxylin and Eosin, original magnification × 20).