Melanocytic Lesions and Disorders of Pigmentation Obgyn Key Morphology of melanocytic lesions in situ Scientific Reports 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. Pigmented Lesions of the Oral Cavity Pocket Dentistry Pigmented (Purple or Brown) Lesions in the Mouth Pigmented (Purple or Brown) Lesions in the Mouth Kazemi Oral Surgery Facialart.com