title: The Mosan Study Group of pigmented neoplasms.
abstract: The Mosan Study Group of Pigmented Neoplasms groups 9 dermatopathologists and pathologists from 9 laboratories. We collect information concerning the epidemiology and the histological nature of malignant melanomas and of their precursors in a circumscribed part of Belgium. During the past three decades there has been a steadily increasing number of primary cutaneous malignant melanomas other than those developed on lentigo maligna. Women are twice more often affected than men. Malignant melanomas supervening on a preexisting melanocytic nevus are of rare occurrence.
authors: Department of Dermatology, CHU de Bavière, University of Liège, Belgium.
authors: G E
authors: GE
authors: Piérard
mesh_terms: D001530:Belgium; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D008545:Melanoma / Q000453:epidemiology* / Q000209:etiology / Q000473:pathology; D012878:Skin Neoplasms / Q000453:epidemiology* / Q000209:etiology / Q000473:pathology; D013472:Sunlight / Q000009:adverse effects