Practical Application of the New Classification Scheme for Congenital Melanocytic Nevi

• Published in: Pediatric dermatology 2015-01, Vol.32 (1), p.23-27
• Main Authors: Price, Harper N., O'Haver, Judith, Marghoob, Ashfaq, Badger, Kellie, Etchevers, Heather, Krengel, Sven
• Format: Article
• Language: English
• Subjects: Adolescent; Adult; Child; Female; Humans; Male; Melanoma - diagnosis; Melanoma - epidemiology; Melanoma - pathology; Melanosis - diagnosis; Melanosis - epidemiology; Melanosis - pathology; Neurocutaneous Syndromes - diagnosis; Neurocutaneous Syndromes - epidemiology; Neurocutaneous Syndromes - pathology; Nevus, Pigmented - classification; Nevus, Pigmented - diagnosis; Nevus, Pigmented - epidemiology; Nevus, Pigmented - pathology; Physical Examination; Practice Guidelines as Topic; Registries; Skin Neoplasms - diagnosis; Skin Neoplasms - epidemiology; Skin Neoplasms - pathology; Surveys and Questionnaires; Young Adult
• ISSN: 0736-8046; 1525-1470
• DOI: 10.1111/pde.12428

A new consensus‐based classification of congenital melanocytic nevi (CMN) has recently been proposed. It includes categories for projected adult size (PAS) and location, satellite nevi counts, and morphologic characteristics (color heterogeneity, rugosity, nodularity, and hypertrichosis). The objective of the current study was to test the applicability of the new categorization scheme and to correlate classification outcome with the patient's history of melanoma and neurocutaneous melanocytosis (NCM). Children and adults with CMN attending a patient conference in Dallas, Texas, in 2012 were invited to participate in the study. Anamnestical data were collected using a standardized questionnaire. Two dermatologists performed clinical examinations. Of 45 patients enrolled, 33 had a giant CMN (G1 [>40 cm PAS], n = 13; G2 [>60 cm PAS], n = 20), 12 had an NCM (5 symptomatic, 7 asymptomatic), and 1 had a history of melanoma. CMN size was positively correlated with NCM (p