This image displays a close-up of the neck showing the typical velvety skin thickening seen in acanthosis nigricans. Acanthosis nigricans, most commonly, is noticed at the armpits and/or neck as a slightly thickened color change, which is sometimes described as appearing "velvety." The darkened color and skin thickening is sometimes subtle in mild and early cases of acanthosis nigricans, as seen here. In addition to the subtle darkening and thickening of the armpit skin caused by acanthosis nigricans, striae (stretch marks) can be seen. This image displays acanthosis nigricans, which affects the body folds, most frequently the neck and armpits. This image displays a skin fold with a rough, "velvety" appearance typical of acanthosis nigricans. This image displays a neck with darker "velvety" skin typical of acanthosis nigricans in a child.
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Acanthosis Nigricans:
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Picture of Acanthosis Nigricans: This image displays a close-up of the neck showing the typical velvety skin thickening seen in acanthosis nigricans. Divider line
This image displays a close-up of the neck showing the typical velvety skin thickening seen in acanthosis nigricans.
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Who's At Risk
Although acanthosis nigricans can affect individuals of any age and any skin color, it is more common in adults and in people with darker skin. Males and females are affected equally.
Last Modified: 9 Nov 2007

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