Acanthosis nigricans

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Acanthosis Nigricans

Acanthosis nigricans (/əˌkænθəˈsoʊs ˈnɪɡrɪkænz/) is a skin condition characterized by areas of dark, velvety discoloration in body folds and creases. The affected skin can become thickened and may smell bad. Most often, acanthosis nigricans affects the armpits, groin and neck.

Etymology

The term "acanthosis nigricans" is derived from the Greek words "akanthos" meaning thorn and "nigricans" meaning blackening. It was first described in medical literature by Pollitzer in 1909.

Symptoms

The primary symptom of acanthosis nigricans is patches of skin that are darker and thicker than usual. They can appear anywhere on the body, but are most common in the following areas:

The skin changes of acanthosis nigricans typically occur in people who are obese or have diabetes.

Causes

Acanthosis nigricans has been associated with:

Treatment

Treatment of acanthosis nigricans involves treating the underlying conditions. This may include:

  • Losing weight if overweight
  • Treating insulin resistance
  • Changing medications if they are the cause

In some cases, a dermatologist may recommend topical retinoids, dermabrasion, or laser therapy to help lighten the dark patches of skin.

See Also

External links

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