The incidence of melanoma is rising faster than any other malignancy. With over 60,000 cases and 8,000 deaths occurring in the year 2002, melanoma causes over 90% of deaths due to skin cancer. The personal risk was estimated at 1 in 70 in the year 2000. Risk factors for melanoma include a positive family history, Type 1 and Type 2 skin, and blistering sunburn before adolescence. The most significant risk factor is the total number of moles. People with more than 50 moles have a two- to threefold increased risk. The presence of atypical nevi (macular nevi greater than 5 mm in diameter with an irregular border and reddish pigmentation) is a marker for increased risk. In patients with a strong family history, atypical nevi are considered premalignant lesions.
KeywordsSentinel Lymph Node Wide Local Excision Lymphatic Mapping Positive Sentinel Node Tumor Thickness
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