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The word melanoma has a long history of being used in a broader sense to refer to any melanocytic tumor, typically, but not always malignant, [170] [171] but today the narrower sense referring only to malignant types has become so dominant that benign tumors are usually not called melanomas anymore and the word melanoma is now usually taken to ...
Melanoma is a type of skin cancer that can spread to other areas of the body. Any diagnosis of melanoma is cancer, even if the term “malignant” is not used before it.
In recognition of his contribution, the depth of invasion of melanoma is referred to by the eponym Breslow's depth. Subsequent studies confirmed and refined the role of depth of invasion in the prognosis of malignant melanoma. [2] [3] Currently, Breslow's depth is included in the AJCC staging guidelines for melanoma as a major prognostic factor.
Acral lentiginous melanoma is a result of malignant melanocytes at the membrane of the skin (outer layers). [2] [3] The pathogenesis of ALM remains unclear, however injury or mechanical stress might play a role in its development. [17] [18] Unlike cutaneous melanoma, it is not caused by sunlight or UV radiation. [10]
Skin cancer diagnoses in the UK hit record levels of 17,545 a year between 2017-19
Melanoma, meanwhile, is a type of skin cancer that can spread to other areas of the body. The main cause of both is exposure to ultraviolet rays, which come from the sun and are used in tanning beds.