Recurrent nevus arising in a halo nevus: Dermoscopy and confocal microscopy features

Spontaneous nevus involution is a natural phenomenon that can be expected though lifetime. It occurs mostly with progressive fading but less frequently can manifest with "targetoid" features (halo, cockade or "Meyerson nevi"). In the halo nevus, spontaneous and progressive involution of the central nevus develops from months to years, disappearing completely in 50% of cases. It is commonly associated with benign melanocytic nevus, but rarely it also occurs in nevi with various degrees of atypia, non-melanocytic tumors, inflammatory and in melanoma(3).

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