2022年6月2日 · Acanthosis nigricans is a condition that causes areas of dark, thick velvety skin in body folds and creases. It typically affects the armpits, groin and neck. Acanthosis nigricans (ak-an-THOE-sis NIE-grih-kuns) tends to affect people with obesity.

2022年3月3日 · 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.

2024年11月11日 · Acanthosis nigricans is a skin condition that results in thick, velvety, light-brown-to-black patches that often appear in the skin folds in the front or back of your neck, armpit, elbows,...

2024年2月7日 · Acanthosis nigricans is a fairly common skin pigmentation disorder. Dark patches of skin with a thick, velvety texture characterize the condition. The affected areas of your skin may also...

Acanthosis nigricans is a treatable skin condition that causes dark patches on your body. It is often (though not always) a sign of prediabetes or diabetes. Talk to your healthcare provider to find out if you have an underlying condition causing AN.

In pathology, acanthosis (or acanthotic) describes an increased number of specialized squamous cells on the surface of a tissue. The increased number of squamous cells causes the tissue to look thicker than normal when examined under the microscope.

2022年6月2日 · Acanthosis nigricans can be detected during a skin exam. To be sure of the diagnosis, your health care provider might take a skin sample (biopsy) to look at under a microscope. Or you may need other tests to find out what's causing your symptoms.

Acanthosis nigricans (AN) is a skin condition that causes one or more areas of skin to darken and thicken. Often the skin with AN feels like velvet. People who get this skin condition sometimes mistakenly believe that a dye or something else they touched has discolored their skin.

Learn about Acanthosis nigricans (AN), and how dermatologists diagnose and treat the condition.

Acanthosis nigricans is the term for darkened, thickened patches of skin in the armpit and around the groin and neck. Find out about the main causes and treatments.