: MeSH: Melanoma

... > Neoplasms by Histologic Type > Neoplasms, Germ Cell and Embryonal > Neuroectodermal Tumors > Neuroendocrine Tumors > Melanoma

... > Neoplasms by Histologic Type > Neoplasms, Nerve Tissue > Neuroectodermal Tumors > Neuroendocrine Tumors > Melanoma

Neoplasms > Neoplasms by Histologic Type > Nevi and Melanomas > Melanoma

Melanoma

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A malignant neoplasm derived from cells that are capable of forming melanin, which may occur in the skin of any part of the body, in the eye, or, rarely, in the mucous membranes of the genitalia, anus, oral cavity, or other sites. It occurs mostly in adults and may originate de novo or from a pigmented nevus or malignant lentigo. Melanomas frequently metastasize widely, and the regional lymph nodes, liver, lungs, and brain are likely to be involved. The incidence of malignant skin melanomas is rising rapidly in all parts of the world. (Stedman, 25th ed; from Rook et al., Textbook of Dermatology, 4th ed, p2445)

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