Hello there.
Yes its possible. But it is really tan or something called acanthosis nigricans.
Acanthosis nigricans is a condition in which the color around the neck darkens.
It could happen due to hormonal disturbances like
thyroid problems etc.
I would suggest you see a dermatologist in person so that he can examine the area and then run a few tests if he feels it's acanthosis nigricans.
Regards
Answered2016-02-20 16:42:25
Let others know if this answer was helpful