Pigmented macular lip lesion Clinical Advisor Medium sized congenital melanocytic nevus spontaneously lightening in a pediatric patient and management JAAD Case Reports Literature Update on Melanocytic Nevi and Pigmented Lesions in the Pediatric Population Current Dermatology Reports Springer Nature Link Common skin lesions. Benign melanocytic lesions An acral nevus is a benign melanocytic lesion found on the palms and soles. Dermoscopically, it most commonly shows the parallel furrow pattern, where pigmentation follows the furrows of the skin markings.