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Old 06-07-2005, 08:29 PM   #5
Sputnik Sputnik is offline
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Join Date: Jan 2005
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Re: Light brown line in nail/nail bed

Please see a dermatologist or oncologist soon. Melanoma is a possibility. There is a particular type of melanoma that develops under the nail bed, normally the large toe or thumb nail. Often the first sign of it is a line as you described. Of course, it may not be cancer, but you really should make sure.