Moles (melanocytic naevi, pigmented nevi) How do you actually grade dysplastic nevi? The answer lies in TWO things: 1 Architectural disorder 2 Cytologic atypia As dysplasia progresses from mild moderate severe: Symmetry is Pigmented Lesions schneider Flashcards Quizlet Pigmented Lesions and Melanoma Plastic Surgery KeyPlastic Surgery Key Med #Melanocytic lesions (dermoscopy) Benign patterns Blue nevus: Homogeneous steel blue blue pigmentation. Common benign nevus: Regular, symmetric pigment network (often a neat reticular pattern). Benign nevus (globular cobblestone): Pigmented Lesions of the Oral Mucosa Pocket Dentistry