The three most common skin cancers are basal cell,squamous cell,and melanoma.Treated early,skin cancers such as squamous cell and basal cell carcinomas may be cured by simple excision and closure (with pathologic diagnosis to ensure disease-free margins).Melanoma is treated much more aggressively because of its high mortality.The A-B-C-Ds of the warning signs for skin cancer stand for:

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Any unusual skin conditions,especially a change in the size or color of a mole or other darkly pigmented growth or spot,should be suspicious of skin cancer.The mnemonic A-B-C-D stands for the following:
A: Asymmetry: One-half of the lesion looks different from the other side.
B: Border irregularity: Instead of a smooth edge,the border is ragged or irregular.
C: Color: The color is usually irregular; may have a number of different hues and colors.
D: Diameter: Lesions larger than 6 mm have a greater chance of being a melanoma.

The Three Most Common Skin Cancers Are Basal Cell,squamous Cell,and