Journal of the European Academy of Dermatology and Venereology : JEADV
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J Eur Acad Dermatol Venereol · Jun 2018
Incidence and relative survival of melanoma in children and adolescents in the Netherlands, 1989-2013.
Melanoma is rare in the first two decades of life. Trends in incidence differ across countries. ⋯ Melanoma is very rare under the age of 12 with stable incidence rates. In comparison with childhood melanoma, melanomas in adolescents are more common with a decreasing trend in the past decade. Male sex and increasing Breslow thickness are associated with worse survival in paediatric melanoma patients.
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J Eur Acad Dermatol Venereol · Jun 2018
ReviewHistiocytosis - cutaneous manifestations of hematopoietic neoplasm and non-neoplastic histiocytic proliferations.
Histiocytoses are rare disorders characterized by the accumulation of cells derived from macrophages, dendritic cells or monocytes in various tissues. There is a broad spectrum of disease manifestations with some subtypes commonly showing skin lesions, while in others, the skin is rarely involved. Here, we describe cutaneous manifestations of histiocytoses belonging to the Langerhans group (L group), the group of cutaneous and mucocutaneous histiocytoses (C group) and the group of Rosai-Dorfman disease (RDD) and related histiocytoses (R group) according to the current classification. ⋯ We suggest exploring the role of an origin from skin residing histiocytes for the isolated cutaneous manifestation in some types. With regard to therapeutic options, skin-directed therapies are the first choice in limited disease, while systemic chemotherapy has traditionally been used in extensive disease. In Langerhans-cell histiocytoses and related entities, therapy by BRAF inhibition has led to a breakthrough especially in patients with an activation of the MAPK pathway.