Acanthosis nigricans (keratosis nigricans) symptoms and causes
Acanthosis nigricans also called keratosis nigricans is a skin disease characterized by dark, velvety hyperpigmentation, thickened conditions of the skin, normally found in body folds areas, i.e. armpits, groin, neck, elbows, knees, knuckles, lips, palms, soles of the feet Symptoms- Dark, thickened, velvety skin in body folds Causes- Acanthosis nigricans skin patches occur when epidermal skin cells begin to reproduce rapidly. This abnormal skin cell growth is most commonly triggered by u2022tToo much Insulin u2022tCertain medications such as birth control pills, human growth hormones, thyroid medications, high doses of niacin etc. u2022tStomach cancer, or gastric adenocarcinoma u2022tAdrenal gland disorders, such as Addisonu2019s disease u2022tPituitary gland disorders u2022tInsufficient thyroid hormones
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