Last summer I noticed that my dd age 13 at the time had dark areas in her armpits (acanthosis negricans). I pointed it out to her pediatrician who sort of ignored me. In Nov. we saw the pediatrician again. I asked about it yet again and pushed for a referral to my endocrinologist (I have PCOS). DD, who is now 14, saw endo today. Yes, mom made a correct diagnosis. We had a bunch of labs drawn and now we await the results, but she probably has insulin resistance, and may also have elevated blood lipids. I just hate to see that DD inherited that trait from me.