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A member asked:
My brother who is over 30 has had a brown mark on his neck for over 3 months his doctor says it's nothing.
3 doctors weighed in across 2 answers
Skin lesion: If it is changing in size, shape, color or becomes raised then he should be evaluated again.
Answered 3/4/2013
5.3k views
Depends: It depends on the type of brown mark. Often obese people develop a velvety brown mark on the back of their neck called acanthosis nigricans. This is a sign of Insulin resistance and potentially diabetes. Other concerning symptoms of skin cancer include changing skin lesion, assymetry, irregular border, multi- colored, diameter larger than 6 mm =, or evolving shape/color.
Answered 6/25/2014
5.3k views
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