Acanthosis Nigricans Quiz
Reviewed By:
Yukiko Ueda, MD (Dermatology)
Dr. Ueda graduated from the Niigata University School of Medicine and trained at the University of Tokyo Medical School. She is currently a clinical assistant professor at the Department of Dermatology, Jichi Medical University, and holds several posts in the dermatology departments at Kyoto Prefectural University of Medicine, Komagome Hospital, University of Tokyo, and the Medical Center of Japan Red Cross Society.
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There is blackened skin on the base of the foot
There is darkened skin on the sole of the foot
There is darkened skin on the back of the hand
There is blackened skin on the epigastric area
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Learn more about Acanthosis nigricans
Content updated on Nov 2, 2022
A skin condition characterized by dark patches on the skin with a thick, velvety texture, usually seen in the neck, armpits or groin region. It's usually seen in people with high insulin levels, ovarian cysts, thyroid or adrenal glands problems, certain drugs like birth control pills or steroids, cancer etc.
Dark spots on skin
Your doctor may ask these questions to diagnose acanthosis nigricans
Do you have skin darkening?
Treatment of the underlying disease may restore normal pigmentation of the skin. Cosmetic procedures like creams, chemical peels, laser etc. can help lighten the pigmention.
View the symptoms of Acanthosis nigricans
Diseases related to Acanthosis nigricans
References
Higgins SP, Freemark M, Prose NS. Acanthosis nigricans: a practical approach to evaluation and management. Dermatol Online J. 2008 Sep 15;14(9):2. PMID: 19061584.
https://escholarship.org/uc/item/7mf6g290
Mourad AI, Haber RM. Drug-induced acanthosis nigricans: A systematic review and new classification. Dermatol Ther. 2021 Mar;34(2):e14794. doi: 10.1111/dth.14794. Epub 2021 Feb 4. PMID: 33480113.
https://onlinelibrary.wiley.com/doi/10.1111/dth.14794
Reviewed By:
Yukiko Ueda, MD (Dermatology)
Dr. Ueda graduated from the Niigata University School of Medicine and trained at the University of Tokyo Medical School. She is currently a clinical assistant professor at the Department of Dermatology, Jichi Medical University, and holds several posts in the dermatology departments at Kyoto Prefectural University of Medicine, Komagome Hospital, University of Tokyo, and the Medical Center of Japan Red Cross Society.
Just 3 minutes.
Developed by doctors.
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Seiji Kanazawa, MD, PHD
Obstetrics and gynecology (OBGYN)
National Center for Child Health and Development, Japan