What is acanthosis nigricans?

Acanthosis nigricans is a skin condition characterised by a velvety papillomatous overgrowth of the epidermis. Darkening and thickening (hyperkeratosis) of the skin occurs mainly in the flexural areas, particularly the axillae, groins, inframammary regions, and the neck.

© DermNet

You can use or share this image if you comply with our image licence. Please provide a link back to this page.
For a high resolution, unwatermarked copy contact us here. Fees apply.

Source: dermnetnz.org