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melanoma |
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melanomaHighly malignant tumour of the melanin-forming cells (melanocytes) of the skin. It develops from an existing mole in up to two-thirds of cases, but can also arise in the eye or mucous membranes. Malignant melanoma is the most dangerous of the skin cancers; it is associated with brief but excessive exposure to sunlight. It is easily treated if caught early but deadly once it has spread. There is a genetic factor in some cases. Once rare, this disease is increasing at the rate of 7% in most countries with a predominantly fair-skinned population, owing to the increasing popularity of holidays in the sun. Most at risk are those with fair hair and light skin, and those who have had a severe sunburn in childhood. Cases of melanoma are increasing by 4% a year worldwide.
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In the case described by Ikeda et al, a patient with
cutaneous amelanotic melanoma developed a metastatic tumor that involved
the epiglottis; the tumor was successfully excised via an intraoral
approach and KTP/532 laser surgery. A patient
with amelanotic melanoma may look well, but will likely soon be dead. |
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amelanotic melanoma
