Melanoma is an infrequent tumour that has recently raised intense interest because of its rapidly increasing incidence, its wide variation in different ethnic groups, and its pathological and biological features. In most countries, the mortality rates have almost doubled over the past 20 years, and malignant melanoma has become increasingly more common in the trunk among men and in the lower limbs among women. The highest mortality rates are observed in Australia and New Zealand (5–6 per 100 000), and the lowest are in Japan and Hong Kong (0.2 per 100 000). In Europe, the highest rates are observed in Scandinavia and the lowest in southern countries; whereas in the USA, the rates increase as one moves from north to south.
KeywordsPrimary Melanoma Papillary Dermis Satellite Nodule Southern Country Primary Cutaneous Melanoma
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